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Survivability Profiling and the Fire Ground Size-Up

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In support of recent program on Taking it to the Streets regarding Survivability Profiling with our  special guest Captain Stephen Marsars, FDNY we are posting some of the research and articles to aid in your own individual research and increased awareness on this emerging concept and refined methodology expanding traditional size-up into a new element.

The radio program, presentation, dialog and discussions added richly to the continuing efforts to improve and challenge the fires service into exploring new directions in an effort to increase our proficiencies, capabilities and operations.

You can download or listen to the the full program HERE.

Here are those reference links;

  • National Fire Academy, Executive Fire Officer Program: EFO Paper: Can They Be Saved? Utilizing Civilian Survivability Profiling to Enhance Size-up and Reduce Firefighter Fatalities in the Fire Department, City of New York  http://www.usfa.dhs.gov/pdf/efop/efo44310.pdf

Other Links from CommandSafety.com

FIREFIGHTER EXPOSURE TO SMOKE PARTICULATES

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Firefighter Exposure to Smoke Particulates

Under a U.S. Department of Homeland Security (DHS) Assistance to Firefighter Grant, Underwriters Laboratories in collaboration with the Chicago Fire Department and the University of Cincinnati College of Medicine, recently completed a sixteen month study on the smoke and gas exposure firefighters confront during firefighting operations and subsequent contact exposure resulting from residual contamination of personal protective equipment.

The project included investigations on three fire scales: (1) fires in the Chicago metropolitan area, (2) residential room content and automobile fires, and (3) material-level fire tests. Detected effluent gases, airborne chemicals and smoke particulates were assessed by the University of Cincinnati College of Medicine for their potential adverse health effects to fire service personnel.

 The potential for firefighters to experience acute and/or chronic respiratory health effects related to exposures during firefighting activities has long been recognized. Specific exposures of concern for firefighters, because of their potential respiratory toxicity, include:

  • Asphyxiants (such as carbon monoxide, carbon dioxide and hydrogen sulfide),
  • irritants (such as ammonia, hydrogen chloride, particulates, nitrogen oxides, phenol and sulfur dioxide),
  • allergens, and
  • carcinogens (such as asbestos, benzene, styrene, polycyclic aromatic hydrocarbons and certain heavy metals).

An additional cardiovascular risk factor that is receiving increasing attention is exposure to respirable particles in the ultrafine range (particles less than 0.1 micron in diameter), which have been detected in smoke. Exposure to these gaseous and particulate agents has been linked to acute and chronic effects resulting in increased fire fighter mortality and morbidity (higher risk of specific cancers and cardiovascular disease).

Currently gaps exist in the knowledge concerning the size distribution of smoke particles generated in fires and the nature of the chemicals absorbed on the particles’ surfaces. Some gaseous effluents may also condense on protective equipment and exposed skin, leaving an oily residue or film. These chemicals can pose a significant threat to firefighter health directly (via the skin and eyes, or by inhalation) or following dermal absorption. This fire research study fills gaps identified in previous studies on fire fighters’ exposure to combustion products. The study focuses on gaseous effluents and smoke particulates generated during residential structure and automobile fires and subsequent contact exposure resulting from residual contamination of personal protective equipment.

The information developed from this research will provide a valuable background for interpreting fire hazards and can be used by:

  • the medical community for advancing their understanding of the epidemiological effects of smoke exposure;
  • first responders for developing situational assessment guidelines for self-contained breathing apparatus (SCBA) usage, personal protection equipment cleaning regimen and identifying the importance of personal hygiene following fire effluent exposure;
  • organizations such as NIOSH and NFPA for developing new test method standards and performance criteria for respirators used by first responders and the care and maintenance of personal protection equipment.

This study investigated and analyzed the combustion gases and particulates generated from three scales of fires: residential structure and automobile fires, simulated real-scale fire tests, and material based small-scale fire tests. Material-level tests were conducted to investigate the combustion of forty-three commonly used residential building construction materials, residential room contents and furnishings, and automobile components under consistent, well-controlled radiant heating conditions. In these tests, material based combustion properties including weight loss rate, heat and smoke release rates, smoke particle size and count distribution, and effluent gas and smoke composition were characterized for a variety of natural, synthetic, and multi-component materials under flaming. The results from these tests were used to assess the smoke contribution of individual materials.

Nine real-scale fire tests representing individual room fires, an attic fire, deck and automobile fires were conducted at UL’s large-scale fire test laboratory to collect and analyze the gas effluents, smoke particulates, and condensed residues produced during fire growth, suppression and overhaul under controlled, reproducible laboratory conditions. During overhaul, firefighter personal atmospheres were sampled and analyzed for gases and smoke particles. Smoke particle analysis included mass and size distributions, and inorganic elemental composition. These tests also served as a platform for developing and refining the condensed residue sampling techniques for field usage.

Over a period of four months Chicago Fire Department designated personnel conducted personal gas monitoring and collected personal aerosol smoke samples at residential fires (knock-down, ventilation and overhaul). Replaceable personal protective components (gloves and hoods) used by the firefighters during this time period were analyzed to identify the chemical composition of accumulated smoke residue.

Collected data was forwarded to University of Cincinnati College of Medicine to assess the potential adverse health effects of the observed gaseous effluents and smoke particles on fire service personnel.

KEY FINDINGS

The key findings of the research were as follows:

General

  • Concentrations of combustion products were found to vary tremendously from fire to fire depending upon the size, the chemistry of materials involved, and the ventilation conditions of the fire.

Material-Scale Tests

  • The type and quantity of combustion products (smoke particles and gases) generated depended on the chemistry and physical form of the materials being burned.
  • Synthetic materials produced more smoke than natural materials.
  • The most prolific smoke production was observed for styrene based materials commonly found in residential households and automobiles. These materials may be used in commodity form (e.g. disposable plastic glasses and dishes), expanded form for insulation, impact modified form such as HIPS (e.g. appliances and electronics housing), copolymerized with other plastics such as ABS (e.g. toys), or copolymerized with elastomers such as styrene-butadiene rubber (e.g. tires).
  • Vinyl polymers also produced considerable amounts of smoke. Again these materials are used in commodity form (e.g. PVC pipe) or plasticized form (e.g. wiring, siding, resin Chairs and tables).
  • As the fraction of synthetic compound was increased in a wood product (either in the form of adhesive or mixture such as for wood-plastic composites), smoke production increased.
  • Average particle sizes ranged from 0.04 to 0.15 microns with wood and insulation generating the smallest particles.
  • For a given particle size, synthetic materials will generate approximately 12.5X more particles per mass of consumed material than wood based materials.
  • Combustion of the materials generated asphyxiants, irritants, and airborne carcinogenic species that could be potentially debilitating. The combination and concentrations of gases produced depended on the base chemistry of the material:
  • All of the materials formed water, carbon dioxide and carbon monoxide.
  • Styrene based materials formed benzene, phenols, and styrene.
  • Vinyl compounds formed acid gases (HCl and HCN) and benzene.
  • Wood based products formed formaldehyde, formic acid, HCN, and phenols.
  • Roofing materials formed sulfur gas compounds such as sulfur dioxide and hydrogen sulfide.

Large-Scale Tests

  • The same asphyxiants, irritants, and airborne carcinogenic species were observed as in material-level tests supporting the premise that gases generated in large-complex fires arise from individual component material contributions.
  • Ventilation was found to have an inverse relationship with smoke and gas production such that considerably higher levels of smoke particulates and gases were observed in contained fires than uncontained fires, and the smoke and gas levels were greater inside of contained structures than outside.
  • Recommended exposure levels (IDLH, STEL, TWA) were exceeded during fire growth and overhaul stages for various agents (carbon monoxide, benzene, formaldehyde, hydrogen cyanide) and arsenic.
  • Smoke and gas levels were quickly reduced by suppression activity however they remained an order of magnitude greater than background levels during overhaul.
  • 99+ % of smoke particles collected during overhaul were less than 1 micron in diameter. Of these 97+ % were too small to be visible by the naked eye suggesting that “clean” air was not really that clean.
  • While not the focus of this research, it should be noted that the ion alarm activated sooner than the photoelectric alarm in every room fire scenario (living rooms, bedroom, kitchen). This is consistent with results reported in the Smoke Characterization Report for model flaming fire tests conducted in the smoke alarm fire test room. Carbon monoxide alarm activation lagged behind both ion and photoelectric alarms, furthermore.

 Field Events & Controlled Field Tests

  • Concentrations of certain toxic gases were monitored at field events during the course of normal firefighter duties. These results were analyzed to determine:
  • Average gas concentrations and exposures calculated for the field events, which may be useful for estimating total exposure from repeated exposures during a firefighter’s career.
  • Potential gas concentration and exposures calculated for the field events, which may be useful for planning firefighter preparedness.
  • Gas exposures in excess of NIOSH IDLH, STEL, and OSHA TWA. These were repeatedly observed at the monitored field events. Carbon monoxide concentrations most often exceeded recommended exposure limits; however instances were observed where Firefighter Exposure to Smoke Particulates other gases other than carbon monoxide exceeded recommended exposure limits yet carbon monoxide did not.
  • Collected smoke particulates contained multiple heavy metals including arsenic, cobalt, chromium, lead, and phosphorous.
  • The NIOSH STEL concentration for arsenic was exceeded at one fire and possibly at a second. Gas monitors would not provide warning for arsenic exposure.
  • Chemical composition of the smoke deposited and soot accumulated on firefighter gloves and hoods was virtually the same except concentrations on the gloves were 100X greater than the hoods.
  • Deposits contained lead, mercury, phthalates and PAHs.
  • Carbon monoxide monitoring may provide a first line of gas exposure defense strategy but does not provide warning for fires in which carbon monoxide does not exceed recommended limits but other gases and chemicals do.
  • The OP-FTIR was difficult to successfully implement in the field and even for the controlled field events in passive mode.
  • While the OP-FTIR could be set-up in less than 2 minutes, it typically took as long as 5 to 10 minutes to start data collection. This time frame is too long when compared to the aggressive time frames of fire suppression.
  • Poor thermal contrast led to insufficient signal-to-noise ratios.

Health Implications

  • Multiple asphyxiants (e.g. carbon monoxide, carbon dioxide and hydrogen sulfide), irritants (e.g. ammonia, hydrogen chloride, nitrogen oxides, phenol and sulfur dioxide), allergens (e.g. isocyanates), and chemicals carcinogenic for various tissues (e.g. benzene, chromium, formaldehyde and polycyclic aromatic hydrocarbons) were found in smoke during both suppression and overhaul phases. Carcinogenic chemicals may act topically, following inhalation, or following dermal absorption, including from contaminated gear.
  • Concentrations of several of these toxicants exceeded OSHA regulatory exposure limits and/or recommended exposure limits from NIOSH or ACGIH.
  • Exposures to specific toxicants can produce acute respiratory effects that may result in chronic respiratory disease.
  • High levels of ultrafine particles (relative to background levels) were found during both suppression and overhaul phases.
  • Exposure to particulate matter has been found to show a positive correlation with increased cardiovascular morbidity and mortality for general population studies.
  • The high efficiency of ultrafine particle deposition deep into the lung tissue can result in release of inflammatory mediators into the circulation, causing toxic effects on internal tissues such as the heart. Airborne toxics, such as metals and polycyclic aromatic hydrocarbons, can also be carried by the particles to the pulmonary interstitium, vasculature, and potentially subsequently to other body tissues, including the cardiovascular and nervous systems and liver.
  • Interactions between individual exposure agents could lead to additive or synergistic effects exacerbating adverse health effects.
  • Long-term repeated exposure may accelerate cardiovascular mortality and the initiation/progression of atherosclerosis.

FUTURE CONSIDERATIONS Based upon the results of this investigation, the following areas were identified for further research:

  1. Greater in depth analysis of the obtained results in relation to previous studies such as those of Jankowic et al on firefighter exposure, LeMasters et al on firefighter cancer epidemiologies, and the first responders at the World Trade Center collapse.
  2. Characterization of potential fire scene exposures including:
    1. asphyxiants,
    2. irritants,
    3. allergens, and
    4. carcinogens.
    5. Better definition of the potential long-term respiratory, cancer and cardiovascular health impacts of varied and complex mixes of exposures such as those identified in this report. Such information could help guide decisions on the selection and utilization of respiratory protection, especially during overhaul activities.
    6. Determination of the relative contribution of respiratory and dermal absorption routes to exposure and adverse health risks of firefighters to combustion products.
    7. Factors determining coronary heart disease risk among firefighters. Such studies could help elucidate the mechanistic link between ultrafine particle exposure and coronary heart disease morbidity and mortality and identify measures to decrease its impact on this population.
    8. Characterization of contaminants accumulated on firefighter protective equipment and the subsequent potential for firefighter exposures to these contaminants and resulting health effects.
    9. Usage and industrial hygiene practices related to firefighter protective equipment, including cleaning patterns, length of use and storage practices.

References:

UL Final Report Project Number: 08CA31673 April 1, 2010 Firefighter Exposure to Smoke Particulates Report, HERE

Underwriters Laboratories Inc., HERE

The Voice of Reason with special guest Shawn Longerich, Executive Director for the Cyanide Poisoning Treatment Coalition (CPTC) Podcast, HERE

The Cyanide Poisoning Treatment Coalition (CPTC) is a 501(c)(3) non-profit comprised of firefighters and medical personnel. The mission of the CPTC is to increase awareness about the risk of fire smoke cyanide exposure as it relates to Awareness, Prevention, Protection, Detection, Diagnosis and Treatment. Web Site HERE

International Society of Fire Service Instructors; “Modern Construction Considerations for Company Officers.”

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The International Society of Fire Service Instructors is proud to announce the release of “Modern Construction Considerations for Company Officers.” The program is a train-the trainer package that combines the latest research on light weight building construction from National Institute of Standards & Technology (NIST), Underwriters Laboratories(UL), Michigan State University, The International Association of Fire Chiefs (IAFC), and the Chicago Fire Department into a single resource tailored for company-level instruction.

The program was made possible through a Prevention & Research Grant from the Assistance to Firefighters Grant Program and the Department of Homeland Security. The ISFSI partnered with Eastern Kentucky University’s Fire & Safety Engineering Technology Program to analyze line of duty deaths between 1997 and 2009 to study the impact that lightweight construction has had on firefighters and firefighting operations.

The DVD included in the program package contains all of the instructional resources necessary to provide quality training on this important topic. A wide variety of support materials are included to provide the user a deep understanding of the challenges with modern building construction techniques. Instructors can tailor the program to meet the needs of their audience, including a 2-hour brief up to a week-long program.

The program will be distributed to all members of the ISFSI as a free member benefit. The ISFSI has also partnered with the Safety & Health Section of the IAFC to provide a copy to each of its members. ISFSI President, Eddie Buchanan, was on hand at the Safety & Health Section Meeting at FRI to personally deliver Chief Billy Goldfeder his copy as chair of the section. All members should expect their copy to arrive in their mailboxes over the next week.

“I would like to extend a heartfelt thank you to the ISFSI members and staff who worked so hard to bring this product to firefighters across America and the globe. It is truly a lifesaving program and a fantastic use of grant funds. It is critical that this package get into the hands of every instructor and fire officer to ensure they are educated and prepared to handle the real risk that looms out there on the next call,” said President Buchanan.

Check out the International Society of Fire Service Instructor’s (ISFSI) web site HERE.

Not a member? Take the time to sign up and get connected.

FDNY Deutsche Bank Building LODD Fire Report issued by NIOSH

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The NIOSH Fire Fighter Fatality Investigation and Prevention Program has released the investigation report of the line of duty deaths of two career FDNY  firefighters during a 2007 seven-alarm high-rise fire in the former Deutsche Bank building undergoing deconstruction and asbestos abatement.

On August 18, 2007,  two FDNY firefighters; Fr. Joseph Graffagnino and Fr. Robert Beddia both assigned to Engine 24 and Ladder 5 in SoHo lost thier lives while operating at this incident. The seven alarm fire was being worked with a contingent of over 275 firefighters when the pair became trapped on the 14th floor of the building after being overcome by blinding concentrations of dense smoke after their air supply was depleted during the course of combat fire suppression operations. FDNY Fr. Robert Beddia a twenty-three year veteran and FDNY Fr. Joseph Graffagnino,  became trapped in the maze-like conditions of a high-rise building undergoing deconstruction. The building’s standpipe system had been disconnected during the deconstruction and the partitions constructed for asbestos abatement prohibited fire fighters from getting water to the seat of the fire. An hour into the incident, the fire department was able to supply water by running an external hoseline up the side of the structure. Soon after the victims began to operate their hoseline, they ran out of air. The victims suffered severe smoke inhalation and were transported to a metropolitan hospital in cardiac arrest where they succumbed to their injuries.

By the time the fire was extinguished, 115 fire fighters had suffered a variety of injuries.Key contributing factors to this incident include: delayed notification of the fire by building construction personnel, inoperable standpipe and sprinkler system, delay in establishing water supply, inaccurate information about standpipe, unique building conditions with both asbestos abatement and deconstruction occurring simultaneously, extreme fire behavior, uncontrolled fire rapidly progressing and extending below the fire floor, blocked stairwells preventing fire fighter access and egress, maze-like interior conditions from partitions and construction debris, heavy smoke conditions causing numerous fire fighters to become lost or disoriented, failure of fire fighters to always don SCBAs inside structure and to replenish air cylinders, communications overwhelmed with numerous Mayday and urgent radio transmissions, and lack of crew integrity.

NIOSH has concluded that, to minimize the risk of similar occurrences, fire departments should:

  • review and follow existing standard operating procedures on high-rise fire fighting to ensure that fire fighters are not operating in hazardous areas without the protection of a charged hoseline.
  • be prepared to use alternative water supplies when a building’s standpipe system is compromised or inoperable.
  • develop and enforce risk management plans, policies, and standard operating guidelines for risk management during complex high-rise operations.
  • ensure that crew integrity is maintained during high-rise fire suppression operations.
  • train fire fighters on actions to take if they become trapped or disoriented inside a burning high-rise structure.
  • ensure that fire fighters diligently wear their self-contained breathing apparatus (SCBA) when working in environments that are immediately dangerous to life and health (IDLH).
  • train fire fighters in air management techniques to ensure they receive the maximum benefit from their self-contained breathing apparatus (SCBA).
  • use exit locators (both visual and audible) or safety ropes to guide lost or disoriented fire fighters to the exit.
  • conduct pre-incident planning inspections of buildings within their jurisdictions to facilitate development of safe fireground strategies and tactics.
  • encourage building owners and occupants to report emergency situations as soon as possible and provide accurate information to the fire department.
  • consider additional fire fighter training using a high-rise fire simulator.

Manufacturers, equipment designers, and researchers should:

  • conduct research into refining existing and developing new technology to track the movement of fire fighters in high-rise structures.
  • continue to develop and refine durable, easy-to-use radio systems to enhance verbal and radio communications in conjunction with properly worn self-contained breathing apparatus (SCBA).
Municipalities should:

  • ensure that construction and/or demolition is done in accordance with NFPA 241: Standard for Safeguarding Construction, Alteration, and Demolition Operations.
  • develop a reporting system to inform the fire department of any ongoing, unique building construction activities (such as deconstruction or asbestos abatement) that would adversely affect a fire response.
  • establish a system for property owners to notify the fire department when fire protection/suppression systems are taken out of service.


The Complete NIOSH Report is available HERE

An excellent Training and Awareness PDF file of  the PPT program on Operational Safety and Awareness at Deonstruction and Demolition Sites Structural Anatomy Safety OPS at Demo Sites

Additional Links, HERE and HERE

New York Times Photos of Deutsche Bank Deconstruction Work, HERE

Other References and postings;

  • NY Daily News: Battle to save trapped firefighters
  • WABC: Fatal Deutsche Bank fire report released (2008)
  • FDNY Penalties After Deutsche Bank Fire
  • Lawyers: Evidence Withheld in Deutsche Bank Fire Trial
  • FDNY Disciplines Company Officers Following Tragic Deutsche Bank Fire
  • Attorney Claims Deutsche Bank Contractors Are “Scapegoats”
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    Premiering “What’s on YOUR Radar Screen”? on Fire Fighter Netcast.com

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    Taking it to the Streets

    Premiering Wednesday July 21st  9:00pm ET

    Live on Firefighter Netcast.com

    Premiering “What’s on YOUR Radar Screen”?

    Check out what’s on of off your radar screen on CommandSafety.com

    If you’ve never listened to a FirefighterNetcast, visit the site now, sign up for a new user account for BlogTalkRadio, and be prepared to join in the conversation Wednesday night.

    Listen in via the Internet, listen and/or participate by calling in, and join in the live chat that takes place amongst listeners while the show is going on. In case you miss the live show, you can even download the recording after the fact on FirefighterNetcast and iTunes too. It’s free, it’s fun and it’s easy.

    Taking it to the Streets is a Buildingsonfire.com Series and Fire Fighter Netcast.com Production

    Check out Buildingsonfire on Facebook and Twitter

    Check out FireDaily and The FireCritic

    Eleven Minutes to Mayday; What You Need to Know

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    The Colerain Township (OH) Fire and EMS Department under the leadership of Director and Chief G. Bruce Smith recently released its final report Investigation Analysis of the Squirrels nest Lane Firefighter Line of Duty Deaths related to the April 4, 2008 Double Line of Duty Death of a Captain and Firefighter.  This investigative analysis and report, although specific to the events and conditions encountered during the conduct of operation at the residential occupancy at 5708 Squirrels nest Lane has pertinent and relevant insights, recommendations and factors that all Fire Service personnel, regardless of rank should read.

    This is one of those distinctive reports that has influential and critical operational, training and preparedness elements embedded throughout the report. Following my review of the report, having previously read the preliminary report findings, it is apparent there continues to be common threads shared by this and other events and incidents where a single of multiple firefighters have lost their lives due to similarities in the apparent and common cause deficiencies and short comings identified.

    All company and command officers should read and comprehend the lessons learned. Then, take these new found insights and see what the gaps are at the personal level (yours or those you supervise) as well as the shift, group, station, battalion, division or department as a whole. If there are gaps, then identify a way to implement timely changes as necessary so there are No History Repeating (HRE) events.

    I have provided a comprehensive synopsis of the report for your review. Take the time to read the entire report, make the time to improve where you need to.  

    On Friday, April 4, 2008 at 06:13:02 hours, what began as a routine response for Colerain Township Fire and EMS Engine 102 to investigate a fire alarm activation at 5708 Squirrels nest Lane, Colerain Township, Ohio resulted in the deaths of Colerain Township Captain Robin Broxterman and Firefighter Brian Schira.

    Upon their arrival at the scene of the two-story wood framed, residential building working fire conditions existed in the basement. The initial attack team consisted of Broxterman, Schira, and one other firefighter. The team advanced a 1¾-inch attack hose line through the interior of the building for fire control.

    Even though, they were provided with some of the most technologically advanced protective clothing for structural firefighting and self-contained breathing apparatus, it appeared that Broxterman and Schira were overwhelmed by severe fire conditions in the basement. 

    During their attempt to evacuate the building, the main-level family room flooring system in which the two were traveling on collapsed into the basement trapping the firefighters. Eleven minutes elapsed from time of arrival to the catastrophic chain of events.

    The investigation of this incident provided a number of findings and recommendations that should be considered by Colerain’s fire department, as well as other fire department organizations. The examination encompassed issues that related to building construction, firefighting tactics, command and control, situational awareness, communications, training, firefighting equipment and the individual responsibility of firefighters of the Colerain Township Department of Fire and Emergency Medical Services (Colerain Fire & EMS). In addition, a segment of the examination included a review of the individual and group affects following such an event, and the measures initiated that attempted to ensure individual, family and organizational wellness.

    The following factors were believed to have directly contributed to the deaths of Captain Broxterman and Firefighter Schira:

    • A delayed arrival at the incident scene that allowed the fire to progress significantly;
    • A failure to adhere to fundamental firefighting practices; and
    • A failure to abide by fundamental firefighter self-rescue and survival concepts

     Although the aforementioned factors were believed to have directly contributed to their deaths, they might have been prevented if:

    • Some personnel had not been complacent or apathetic in their initial approach to this incident;
    • Some personnel were in a proper state of mind that made them more observant of their surroundings and indicators;
    • The initial responding units were provided with all pertinent information in a
    • timely manner relative to the incident;
    • Personnel assigned to Engine 102 possessed a comprehensive knowledge of their first-due response area;
    • A 360-degree size-up of the building accompanied by a risk – benefit analysis
    • was conducted by the company officer prior to initiating interior fire suppression operations;
    • Comprehensive standard operating guidelines specifically related to structural
    • firefighting existed within the department;
    • The communications system users (on-scene firefighters and those monitoring the incident) weren’t all vying for limited radio air time;
    • The communications equipment and accessories utilized were more appropriate for the firefighting environment;
    • Certain tactical-level decisions and actions were based on the specific conditions;
    • Personnel had initiated fundamental measures to engage in if they were to become disoriented or trapped inside a burning building; and
    • Issued personal protective equipment was utilized in the correct manner.

     Incident Reported

    On Friday, April 4, 2008, at 06:11:23, the Hamilton County Communications Center (HCCC) received notification of an automatic alarm activation (smoke detector and carbon monoxide) at 5708 Squirrels nest Lane (LN).

    • An automatic fire alarm response complement of two engine companies (Engines 102 & 109), one ladder company (Ladder 25), and the Battalion Chief (District 25) were dispatched to investigate at 06:13:02.
    • At 06:13:43, a second notification was received from the female homeowner reporting a fire in the basement of the building.
    • At 06:20:43, a third notification by means of a cellular phone from the female homeowner to HCCC routed through the City of Cincinnati’s Fire and Police Communications Center was received.
    • At 06:22:41, the initial response complement was then upgraded to a building fire, also known as a structure fire response complement to include one additional engine company (Engine 25), one rescue company (Rescue 26), and one basic life support transport unit (Squad 25).

    Property and Building Description: The building at 5708 Squirrels nest LN was a single-family residence that set back approximately 450-feet from the street at the end of a private driveway on a heavily wooded lot.

    • The building was two-stories in height, approximately 45-feet wide by 30-feet deep with a finished below-grade (basement) living space and attached two-car garage.
    • For simplicity, the report refers to the living space under the main-level of the building as a basement.
    • From the front (side Alpha), the building was two-stories above grade. The vertical distance between floors was approximately eight-feet. The exterior main entrance was located in the front middle of the building approximately one-foot above grade level.
    • Additional entrances to the first-floor living space were by means of a rear entry door from an upper-level deck area and through the garage area.
    • The interior stairway to the basement was located approximately 15-feet from the front main entry door towards the rear of the building. There were no exposed buildings on the adjacent sides of the fire building.

    The building was located approximately 450-feet from the curb and a driveway leading to the front entrance. The nearest fire hydrant was located approximately 500- feet from the front entrance. To provide for uniform identification of locations and operationalforces at the incident scene, the scene was divided geographically into smaller parts, which were designated as sectors. Specific areas of the incident scene were designated as follows:

    • The side of the building that bears the postal address of the location was designated as Side Alpha or front by the Incident Commander;
    • The property sloped downward towards the rear (side Charlie) of the building with an approximate 13-foot elevation difference from side Alpha to Charlie. The
    • Charlie side of the building was three-stories above the rear grade level with the building’s basement floor approximately five-feet above grade level. The exterior entrance to the building’s’ basement area, also known as a walk-out was by means of a stairway that led to a wooden deck on the Charlie side adjacent to the Delta side. A second stairway led to an upper level deck that served the main level of the building.

     

    Initial Fire Attack Operation: Upon arrival at the incident address, Engine 102 (E102), assigned four personnel (one captain, one fire apparatus operator [FAO], and two firefighters) entered and proceeded down the driveway deploying a five-inch supply hose line.

    • With their apparatus positioned in front of the building Captain (Capt.) Broxterman radioed, “Moderate smoke showing. E102 will be Squirrelsnest Command.” at 06:24:01.
    • Verification was made by the E102’s FAO through face-to-face communication with the male homeowner that all occupants were out of the building, which was then relayed to Capt. Broxterman.

    District 25 (D25) arrived at the scene at 06:26:35 and assumed Command from Capt. Broxterman. Capt. Broxterman, Firefighter (Ffr.) Schira and E102’s Ffr. #2 advanced a 1¾-inch pre-connected hose line through the front main entrance. The fire was determined to be located in the basement of the building.

    • At 06:27:52, Capt. Broxterman radioed, “E102 making entry into the basement, heavy smoke”.
    • At 06:30:35, E109′s captain radioed, “Command from E109, contact 102,have them pull out of the first floor, redeploy to the back. It’s easy access. Conditions are changing at the front door.”
    • At 06:34:48, Engine 25 (E25), the designated Rapid Assistance Team, had just completed their 360-degree size-up around the building, and encountered E102’s Ffr. #2 in front of the building, whom reported that he had lost contact with his crew.
    • During the time period between 06:29:24 and 06:34:48, the investigation committee believed that one or more catastrophic events occurred including a failure of the main-level flooring system near the Beta – Charlie corner of the building.

     Rescue and Recovery Operations

    • At 06:35:34, the Incident Commander (IC) identified a potential Mayday operation, which indicates a life threatening situation to a firefighter.  
    • RAT25 was deployed at 06:36:48. The actual Mayday operation was initiated by the IC at 06:37:41 followed by a request at 06:37:53 to the HCCC for a second alarm complement of firefighting resources.  
    • At 06:42:01, RAT25 entered the basement from the rear of the building. At 07:00:27, E26’s personnel entered through the front main entrance of the building and into the basement by means of the interior stairway.  
    • Both missing firefighters were located in the basement near the Charlie side wall adjacent to the Beta side following a floor collapse. Capt. Broxterman and Ffr. Schira were obviously deceased as a result of their injuries. 

    Fire Origin and Cause: Information from the property owners was that the female had smelled an odor in the house. She told her husband, who went to investigate. Neither of them observed any smoke or flames at that time. The husband went to the basement, and located a fire near a cedar wood lined closet used to cultivate orchids in the unfinished utility room. He attempted to extinguish the fire with portable fire extinguishers and pans of water. As the fire alarm activated, the husband had his wife call 9-1-1 to report the fire. The state of Ohio Fire Marshal’s Office Fire and Explosion Investigation Bureau ruled the fire to be accidental in nature. The fire was determined to have originated in the unfinished utility room of the basement level in or near the cedar closet. This area was directly below the family room on the first floor. The probable ignition source for this fire was determined to be at and about a plastic air circulation fan and the associated electrical wiring.

    Cause of Deaths

    Capt. Broxterman was a 37-year old employee of the Colerain Fire & EMS with approximately 17-years of certified firefighting experience. Capt. Broxterman became trapped in the basement area for a prolonged amount of time following the sudden floor collapse. Capt. Broxterman was found positioned face down over top of Ffr. Schira. The majority of her protective clothing ensemble and equipment were heavily damaged as a result of exposure to heat and direct flame impingement. She was pronounced deceased following her removal from the building. Her body was transported to the Hamilton County Coroner’s Office for autopsy. The Coroner’s report cited the manner of death as “accidental” and the cause of death as “burns and inhalation of smoke and superheated and noxious gases.” Capt. Broxterman sustained burns to 100% of her body surface, which ranged from first to fourth degree in severity as described in the coroner’s autopsy report. Postmortem carboxyhemoglobin (COHb), which is a measure of carbon monoxide exposure, was measured at 22% saturation and soot was observed in portions of her upper and lower respiratory system.

    • Based on the injuries sustained and the damage to Capt. Broxterman’s protective clothing ensemble and equipment, it is likely that she was exposed to a rapid intensification of heat and flames in the building’s basement that overwhelmed her protective ensemble and equipment, exposing her body and respiratory system to intense heat and toxic products of combustion.

     Ffr. Schira was a 29-year old employee of Colerain Fire & EMS with approximately 3½-years of certified firefighting experience. He also became trapped in the basement area for a prolonged amount of time following the sudden floor collapse. Ffr. Schira was found positioned on his right side and back, face-up beneath Capt. Broxterman. The majority of his protective clothing ensemble and equipment was heavily damaged as a result of exposure to heat and direct flame impingement. Ffr. Schira was pronounced deceased following his removal from the building. His body was transported to the Hamilton County Coroner’s Office for autopsy. The Coroner’s report cited the manner of death as “accidental” and the cause of death as “burns and inhalation of smoke and superheated and noxious gases”. Ffr. Schira sustained burns to 100% of his body surface, which ranged from first to fourth degree in severity as described in the coroner’s autopsy report. Postmortem COhb was measured at 8% saturation and soot was observed in portions of his upper and lower respiratory system.

    • Based on the injuries sustained and the damage to Ffr. Schira’s protective equipment, it is likely that that he was exposed to a rapid intensification of heat and flames in the building’s basement that overwhelmed his protective ensemble and equipment, exposing his body and respiratory system to intense heat and toxic products of combustion.

    Select Findings and Recommendations

    Findings, Discussions and Recommendations

    FINDING #3.1: The area of fire origin had no finished ceiling, which exposed the floor joists and the underside of the floor decking to direct fire impingement causing rapid deterioration and failure of the flooring system directly underneath the main-level family room.

    During this incident, based on communications transcripts (telephone and radio) it’s probable that the fire had advanced from its incipient stage to a free burning stage in approximately 18 to 20-minutes by the time Capt. Broxterman radioed that they were making entry into the basement.

    • As stated in the Incident Overview section, during the time period between 06:29:24 and 06:34:48, it is believed that one or more catastrophic events occurred within the building, which included a failure of the flooring system near the Beta-Charlie corner of the building’s first floor.

    It has been widely believed in the firefighting profession that traditional sawn lumber is far superior to some of the more innovative lightweight construction components (e.g., wood I-joist) in use today. With dimensional lumber, two-inch by eight-inch and larger, there is a greater surface to mass ratio to resist the damaging effects of fire and the structural components will maintain their integrity for a longer period of time. While this has traditionally been accurate, this incident clearly shows that this may not always be the case. Heavy charring was evident to structural members in the fire area of origin. Notice the burn damage shows how the wooden floor joists had been burned to and away from the band joist. A band joist is a vertical member that forms the perimeter of a floor system in which the floor joists tie in to. Also known as the rim joist. Early platform framed homes very likely used solid, dimensional lumber and plywood, which provided a reasonable surface to mass ratio. But the later the home was built, the less mass even dimensional lumber has due to the reduction in the actual thickness of solid dimensional lumber provided by the lumber industry through the mid-1900’s. As the years go by, building materials will likely keep getting lighter and lighter and introduce more resins and other chemicals.

     Laboratory tests that exposed structural wood components to the American Society for Testing and Materials (ASTM) E119 Assembly Test indicated that a traditional two-inch by ten-inch structural member failed in 12-minutes and six-seconds. ASTM E119 test is the standard test method for evaluating building and construction materials exposed to fire. Unlike the standardized ASTM test fires, it is widely recognized that real building fires are highly variable in their size, rate of growth and intensity. Responding firefighters are unlikely to know when a given fire started, how hot it had been prior to arrival, how long it had been at any given temperature, the design capacity and actual loads on the floors over the fire or the amount of actual damage that the fire may have done to the joists. All of these factors make it impossible to predict the remaining capacity of a floor by even the most knowledgeable, professional fire experts.

    RECOMMENDATION #3.1a: Fire departments should ensure that firefighters and incident commanders are aware that unprotected floor and ceiling joist systems, no matter the type, may fail at a faster rate when exposed to direct fire impingement.

    Unfinished basement ceilings and other areas that have exposed joists or trusses jeopardize flooring and roof systems unnecessarily during a fire, causing premature failure. Often, a weakened floor and ceiling joist system can be difficult to detect from above as the floor surface above may still appear intact. Firefighters operating on floors above fire-damaged joist systems may fall through a weakened area and become trapped in a fire below. IC’s and firefighters must be aware that these systems can fail rapidly and without warning, and plan interior operations accordingly.

    Firefighters must also be aware that while floor sag may be a widely accepted warning of an impending structural failure, floor sag is not always present or visible prior to a catastrophic collapse in a fire, regardless of the joist type, due to floor coverings, the fire’s intensity, the combination of joist spans and loads present, the location of serious structural fire damage or simply because it is too dark and smoky to see a sag in the floor. This is true for all types of structural joists, including materials such as sawn lumber, wood I-joists, and open web wood trusses and noncombustible members such as lightweight steel joists. The floor covering in this area was carpeting that transitioned to ceramic tile. When unprotected, any traditional or lightweight residential floor or ceiling assembly material, either combustible or noncombustible, may fail within several minutes of the fire’s ignition. It makes sense, therefore, that when there is a serious fire beneath a floor, there is no predictable safe amount of time that anyone can remain on that floor. Any floor system protected or not, can fail unpredictably when exposed to a substantial fire beneath.

    FINDING # 4.2: E102′s officer failed to properly analyze the scene by not performing a 360-degree scene size-up to determine an overall strategy, and implement safe and effective firefighting tactics.

    After the apparatus was positioned in front of the building, E102’s FAO was ordered by Capt. Broxterman to, “Ask the homeowner where the fire [location] was”, which was indicated to be in the basement by the male homeowner. As this was taking place, Capt. Broxterman continued donning her protective clothing ensemble (coat, helmet and self-contained breathing apparatus). Although E102′s officer provided a brief radio report of conditions observed upon arrival, she did not properly evaluate the scene so as to develop a basic strategy for implementation of safe and effective firefighting tactics. Had the officer visually evaluated the Charlie side of the building, the advanced fire conditions may have been noted, and that the lower level fire area was accessible by means of an exterior entry door for a more direct fire attack from the interior unburned side.

    This means that firefighters enter a building and position the attack hose line between the fire and the uninvolved portions of the building. This direction of fire attack is preferred because it is likely to contain the fire, protect occupants, and push heat and gases out of the building if ventilation has been performed. On the other hand, danger increases significantly when attacking from the unburned side and is not always practical based on fire location, intensity, and building construction.

    It cannot be conclusively known as to why Capt. Broxterman and Ffr. Schira proceeded into the area of the building that eventually collapsed resulting in their deaths. The investigation committee has concluded that the most probable explanation is that E102′s three-person interior team was successful in advancing their uncharged attack hose line into the basement recreation room area; reaching a point approximately 10 to15-feet from the bottom of the basement stairway as shown in the Incident Overview chapter. Once the team reached this area, it was realized they did not have sufficient hose line to continue advancing towards the seat of the fire. The team’s third member (Ffr. #2) reversed his travel and made his way back to the exterior of the building to advance additional hose line. As the team of two waited for additional hose line to be stretched and the hose line to be charged by the pump operator, the interior conditions rapidly deteriorated to a stage that it became untenable for them to hold their position.

    The team evacuated back-up the stairway without following the hose line, which by all indications was tight up against the stairway wall and tightly wrapped around the stairway door entry. Once at the top of the stairway, one of the two deceased, if not both were likely in some form of distress; became disoriented and proceeded into the family room in a direction opposite the route of travel from which they entered the building. As the two moved across the family room floor, the flooring system collapsed into the utility room area of the basement. When the third team member re-entered the building, he was unable to locate the other two members.

    The inability of Ffr. #2 to locate his team and the loss of radio communications contact with the interior team prompted the IC to declare a Mayday and activation of the RATs. This incident resulted in tragedy primarily due to the concealment of several burned-through floor joists under the carpet covered flooring system, which was nearly impossible to recognize due to heavy smoke conditions inside the burning building.

    The following factors are believed to have directly contributed to the deaths that occurred in this incident:

    • The delayed arrival at the incident scene allowed the fire to progress significantly and the hazardous conditions to exponentially increase;
    • The failure to adhere to fundamental firefighting practices (e.g., entry into an enclosed building with obvious working fire conditions without a charged attack hose line)
    • The failure to abide by the fundamental concepts of fire fighter self-rescue and survival (e.g., following of the hose line in the direction of travel back to the building’s entrance or exit).

     Although the aforementioned factors are believed to have directly contributed to the deaths reported here, they might have been prevented if:

    • Some personnel had not been complacent or apathetic in their initial approach to this incident which eventually led to being overwhelmed in their response to their initial findings;
    • Some personnel were in a proper state of mind that made them more observant of their surroundings and indicators, and the potential threats and risks that presented themselves;
    • The initial responding units were provided with all pertinent information in a
    • timely manner relative to the incident, especially critical was the information  given to the emergency communications center from the homeowners reporting an actual fire
    • Personnel assigned to E102 possessed a comprehensive knowledge of their firstdue response area specifically related to road and street locations, and any particular characteristics related to those areas.
    • A 360-degree size-up of the building accompanied by a risk – benefit analysis was conducted by the company officer prior to initiating interior fire suppression operations; the risk of an action must be weighed against the probable benefit that may be reasonably and realistically expected.
    • Comprehensive standard operating guidelines specifically related to structural firefighting existed within the department;
    • The communications system users (on-scene firefighters and those monitoring the incident) weren’t all vying for limited radio air time. This competition led to missed and distorted messages and less than efficient use of resources, which exacerbated the problems of already taxed communications.
    • The communications equipment and accessories utilized were more appropriate for the firefighting environment;
    • Certain tactical-level decisions and actions were based on the specific conditions as encountered with an emphasis placed on fire ground tactical priorities (i.e., life safety, incident stabilization and property conservation);
    • Personnel had initiated fundamental measures to engage in if they were to become disoriented or trapped inside a burning building; and
    •  Issued personal protective equipment was utilized in the correct manner.

    In Memory

    The Colerain Township (OH) Department of Fire and Emergency Medical Services’s report examined the events of April 4th, 2008 with the benefit of hindsight, while seeking to be independent, impartial, and thorough. From the beginning, Colerain Fire & EMS has been committed to share our findings with others in the hope that it may prevent another such event.

    The deaths of Captain Robin M. Broxterman and Firefighter Brian Schira had a profound loss not only to their parents, family and this organization, but also to the larger fire service community. In order to prevent these tragic losses in the future, we must first understand how and why our sister and brother firefighters died. We must learn from their incident and take that knowledge forward. If it was possible, what would these firefighters tell us today that might prevent a similar death of a firefighter in the future? What would they want us as firefighters, company officers and chief officers to know about the circumstances that lead to their deaths and the things we (and they) might have done to alter the most tragic of outcomes?  

    From the information that was made available for review, it was evident that these two individuals were well-loved in life, and greatly missed in death. Every line of duty death of a firefighter in the United States is significant. This investigative analysis document is dedicated to Captain Broxterman and Firefighter Schira, their families, friends and the community whose lives were forever changed. In working to improve the health and safety of all United States firefighters, we have much to learn from the supreme sacrifice of these two individuals, who they were in life and in death. We honor their memories.

      

    References

    • Colerain Township Department of Fire and Emergency Medical Services, Web Site HERE
    • Investigation Analysis of the Squirrels nest Lane Firefighter Line of Duty Deaths April, 2010 Full Report HERE
    • NIOSH Fire Fighter Fatality Investigation Report F2008-09| CDC/NIOSH July, 2009, Report HERE
    • WLTW.com news report Summary HERE

      

     

    Reflecting on These Days of June

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    Over the next few days, much will be written up reflecting on a number of past historical events that resonate with the rich heritage, honor and tradition that makes this Fire Service what it is.  Anniversaries come and go; remembrance, sorrow, grief and respect; the good and the bad all seem to come streaming back-or these emotions and the lessons from these events seem to diminish and fade over even the shortest spans of time that may have passed.  Or may have been all but forgotten as a new generation comes through the firehouse doors. Yes it does happen.

    We need to learn, remember and implement the lessons from the past, especially when we refer to or are confronted with History Repeating Events (HRE) or similar situational profiles. We must develop an inherent understanding on the Predictability of Performance of our building and occupancies and truly understand and apply effective strategic and tactical plans under combat structural fire engagement. There are legacies for operational safety; do you know what they where, who was affected and what the outcomes where?

    We must implement a process of Tactical Patience that correlates to  the manner in which our building perform, the dynamics and behavior of fire that affects them and defines our firefighting methodologies when we engage in our missions of operations within the built environment. I’ll post more on Tactical Patience after I roll this emerging concept out at my lecture program presentation at the upcoming Southeastern Association of Fire Chief’s Conference (SEAFC) in Louisville later this month.

    The built-environments that form and shape our response districts and communities pose unique challenges to the day-to-day responses of fire departments and their subsequent operations during combat structural fire engagement. With the variety of occupancies and building characteristics present, there are definable degrees of risk potential with recognizable strategic and tactical measures that must be taken. Although each occupancy type presents variables that dictate how a particular incident is handled, most company operations evolve from basic strategic and tactical principles rooted in past performance and operations at similar structures. This basis is based upon Predictability of Performance.

    • Modern building construction is no longer predicable
    • Command & company officer technical knowledge may be diminished or deficient
    • Technological Advancements in construction and materials have exceeded conventional fire suppression practices
    • Some fire suppression tactics are faulted or inappropriate, requiring innovative models and methods.
    • Fire Dynamics and Fire Behavior is not considered during fireground size-up and assessment
    • Risk Management is either not practiced or willfully ignored during most incident operations
    • Some departments or officers show and indifference to safety and risk management
    • Command & Company Officer dereliction
    • Nothing is going to happen to me (us)

    STOP THE ENTERTAINMENT
    There’s another factor contributing to unsafe practices, one that we rarely talk about. In short, we need to stop “entertaining” ourselves during fire suppression operations and instead focus on comprehending and reacting to evolving risks. Rather than practicing appropriate risk management, it is suggested that some individuals employ adverse behaviors that occur on a tactical level while Incident Commanders and Company Officers believe firefighters are completing their assigned tasks, thus compromising accountability.

    These behaviors include;
    • Tactical amusement: engaging in any practice or tactic during fire suppression, support tasks or operations that places personnel at risk for the sake of entertainment.

    • Tactical diversion: diverting from an assignment while engaging in fire suppression, support tasks or operations in such a way that places personnel at risk.

    • Tactical circumvention: deliberately “getting around” an assignment or disregarding risk assessment and incident action plans.

    Here’s the expanded versions in case this is th first time you’ve seen them;

    TACTICAL AMUSEMENT *tak-ti-kəl ə- *myüz-mənt
    1: of or relating to structural fireground tactics: as a (1) a means of amusing or entertaining during fire suppression, support tasks or operations that places personnel at risk
    2: the condition of being amused while engaging in fire suppression, support tasks or operations that places personnel at risk
    3: pleasurable diversion while engaging in fire suppression, support tasks or operations: entertainment; that places personnel at risk

    TACTICAL DIVERSION *tak-ti-kəl də- *vər-zhən
    1: the reckless act or an instance of diverting from an assignment, task, operation or activity while engaging in fire suppression, support tasks or operation for the sake of amusing or entertainment; that places personnel at risk
    2: the reckless act of self determined task operations that diverts or amuses from defined risk assessment and incident action plans; that places personnel at risk

    TACTICAL CIRCUMVENTION *tak-ti-kəl sər-kəm- *ven(t)-shən
    1: to deliberately manage to get around especially by ingenuity or approach that diverts for the purpose of amusing; assignment, operations or tasks that countermand or disregard defined risk assessment and incident action plans; that places personnel at risk

    TACTICAL PATIENCE (NEW) This is a new one that’s called Tactical Patience…I’ll post more on Tactical Patience after I roll this out at the upcoming Southeast Association of Fire Chief’s Conference (SAFC) in Louisville later this month.

    If we’re going to reduce firefighter injuries and deaths, we must be doing the right thing, at the right time, for the right reasons, and in the right place. We must stop the entertainment.

    The demands and requirements of modern firefighting will continue to require the placement of personnel within situations and buildings that carry risk, uncertainty and inherent danger. Fire suppression tactics must be adjusted for the rapidly changing methods and materials impacting all forms of building construction, occupancies and structures. The need to redefine the art and science of firefighting is nearly upon us. Some things do stand the test of time, others need to adjust, evolve and change. Not for the sake of change only, but for the emerging and evolving buildings, structures and occupancies being built, developed or renovated in our communities. It’s no longer just brute force and sheer physical determination that define structural fire suppression operations. Aggressive firefighting must be redefined and aligned to the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within know hostile structural fire environments, while maintaining the values and tradition that defines the fire service.

    Check out these links;

    If you haven’t read Chief Mayers’s discerning reflections on Firehouse Zen, this is a MUST read. Where Were You That Night?

    The Lessons Learned from the Past

    From Waldbaum’s to Hackensack- Worcester to Charleston; Legacies for Operational Safety

    Predictability of Occupancy Performance during Suppression Operations

    Combat Fire Engagement

    Situations, Size-Up, Actions and Entertainment

    Changes in Building Construction and Fire Behavior

    Predictability of Occupancy Performance during Suppression Operations

    6 comments

    2-2-2009 3-20-14 PMOur buildings have changed; the structural systems of support, the degree of compartmentation, the characteristics of materials and the magnitude of fire loading. The structural anatomy, predictability of building performance under fire conditions, structural integrity and the extreme fire behavior; accelerated growth rate and intensively levels typically encountered in buildings of modern construction during initial and sustained fire suppression have given new meaning to the term combat fire engagement.

    The rules for combat structural fire suppression have changed, but we have yet to write the rule book from which the new games plans must be derived. We seek the elusive “Rosetta stone” that aligns and interprets the emerging and traditionalist acumen related to fire stream effectiveness, flow rates, cooling capacity, extreme fire behavior and fire dynamics, compartment fire theory, propagation and cooling capacity and tactical deployment all relate towards defining an engineering approach to firefighting tactics versus the manual, labor-driven tactics of line deployment and rudiment placement of water on a fuel source within the fire compartment (room).

    It’s no longer just brute force and sheer physical determination that defines structural fire suppression operations. It begs to suggest that many of today’s incident commanders, company officers and firefighters lack the clarity of understanding and comprehension that correlate to the inherent characteristics of today’s buildings, construction and occupancies and the need for refined engine company operations within the modern building construction setting. We assume that the routiness or successes of our operations and incident responses equates with predictability and diminished risk to our firefighting personnel.

    The work of such notable suppression theory pioneers as P. Grimwood, E. Hartin, S. Särdqvist and S. Svennson and the concepts surrounding 3D firefighting, B-SAHF and other emerging research from the NIST and UL are areas that today’s discerning and progressive fire officer and commanders must become well-informed and conversant. The quantitative scientific data and emerging concepts from continuing research and testing such as the NIST’s Wind Drive Fire Studies and UL’s The Structural Stability of Engineered Lumber in Fire Conditions are providing enlightenment on fire development, fuel controlled and ventilation controlled fire development, operational time-duration parameters and degradation and failure mechanisms related to compromise and structural collapse in occupancies.

    Our current generation of buildings, construction and occupancies are not as predictable as past conventional construction, therefore risk assessment, strategies and tactics must change to address these new rules of combat structural fire engagement.

    • Building Construction Systems
      • Heritage
        • Pre-1919
      • Legacy
        • 1920-1949
      • Conventional
        • 1950-1979
      • Engineered
        • 1980-2010
      • Hybrid
      • Chameleon

    The fundamental compartment that comprised a typical room configuration in terms of area (square footage), volume (height/Width), furnishings (fire load package) and materials of construction (structural anatomy) found within conventional, legacy or heritage construction provided predictability in terms of fire suppression, fire behavior, operational time and survivability (civilian/firefighter). The dramatic changes since the early 1980’s in the evolution of modern building construction and the institutionalization of engineered structural systems (ESS) have created compartment (room) areas in excess 500 SF, volumes that are open and spaciously interconnected to other habitable space, fire load packages that create extreme fire behavior, compromising structural stability in shorter time spans creating decreasing interior operational time and requiring increasing fire flow rates and volume to sustain requisite extinguishment demands.

    Commanders and Company Offices need to gain new insights and knowledge related to the modern building occupancy and to modify and adjust operating profiles in order to safe guard companies, personnel and team compositions. Strategies and tactics must be based on occupancy risk not occupancy type and must have the combined adequacy of sufficient staffing, fire flow and nozzle appliances orchestrated in a manner that identifies with the fire profiling, predictability of the occupancy profile and accounts for presumed fire behavior. Today’s engine company operations and fire suppression theory has to progress beyond the pragmatic approaches to fire suppression such as “Big Fire-Big Water principle.

    When we look at various buildings and occupancies, past operational experiences; those that were successful, and those that were not, give us experiences that define and determine how we access, react and expect similar structures and occupancies to perform at a given alarm in the future. Naturalistic (or recognition-primed) decision-making forms much of this basis. We predicate certain expectations that fire will travel in a defined (predictable) manner that fire will hold within a room and compartment for a predictable given duration of time; that the fire load and related fire flows required will be appropriate for an expected size and severity of fire encountered within a given building, occupancy, structural system; in addition to having an appropriately trained and skilled staff to perform the requisite evolutions.

    Executing tactical plans based upon faulted or inaccurate strategic insights and indicators has proven to be a common apparent cause in numerous case studies, after action reports and LODD reports. Our years of predictable fireground experience have ultimately embedded and clouded our ability to predict, assess, plan and implement incident action plans and ultimately deploy our companies-based upon the predictable performance expected of modern construction and especially those with engineered structural systems.

    If you don’t fully understand how a building truly performs or reacts under fire conditions and the variables that can influence its stability and degradation, movement of fire and products of combustion and the resource requirements for fire suppression in terms of staffing, apparatus and required fire flows, then you will be functioning and operating in a reactionary manner, that is no longer acceptable within many of our modern building types, occupancies and structures. This places higher risk to your personnel and lessens the likelihood for effective, efficient and safe operations. You’re just not doing your job effectively and you’re at RISK. These risks can equate into insurmountable operational challenges and could lead to adverse incident outcomes. Someone could get hurt, someone could die, it’s that simple; it’s that obvious.

    Considerations for changing fire flow rates, the sizing of hose line and the adequacies for fire flow demand and application rates, staffing needs for safe operations, considerations for defensive positioning and defensive operating postures must be considered, and it warrants repeating again; Reckless-Aggressive firefighting must be redefined in the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within known hostile structural fire environments- with determined, effective and proactive firefighting

    • Doctrine of Combat Fire Engagement
      • Predictive Strategic Process
      • Tactical Deployment Model
      • Dynamic Tactical Deployment
      • Performance Indicators and Street Aides
        • Fire Dynamics
        • Resistance
        • Resilience
        • Structural Systems
        • Occupancy Hazard Profiles

    The traditional attitudes and beliefs of equating aggressive firefighting operations in all occupancy types coupled with the correlating, established and pragmatic operational strategies and tactics must not only be questioned, they need to be adjusted and modified; risk assessment, risk-benefit analysis, safety and survivability profiling, operational value and firefighter injury and LODD reduction must be further institutionalized to become a recognized part of modern firefighting operations.

    Aggressive firefighting must be redefined and aligned to the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within known hostile structural fire environments.

    Our current generation of buildings, construction and occupancies are not as predictable as past conventional or legacy construction and occupancies;

    • Risk assessment, strategies and tactics must change to address these new rules of structural fire engagement.
    • You need to gain the knowledge and insights and to change and adjust your operating profile in order to safe guard your companies, personnel and team compositions.
    • Again strategic firefighting operations; Strategies and tactics must be based on occupancy risk not occupancy type.

    The following are quotes from Fire Chief Anthony Aiellos (ret) Hackensack (NJ) Fire Department, Fire Chief during the Hackensack Ford Fire, July, 1988…

    “If you don’t fully understand how a building truly performs or reacts under fire conditions and the variables that can influence its stability and degradation, movement of fire and products of combustion and the resource requirements for fire suppression in terms of staffing, apparatus and required fire flows, then you will be functioning and operating in a reactionary manner. This places higher risk to your personnel and lessens the likelihood for effective, efficient and safe operations. You’re just not doing your job effectively and you’re at RISK. These risks can equate into insurmountable operational challenges and could lead to adverse incident outcomes”.

    Putting the wet stuff on the red stuff

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    100653094_54cd7f3f5eThe essence of fire service suppression operations is predicated upon the deployment and application of water as an extinguishing agent, in sufficient quantities, location and duration to extinguish a fire within an enclosed structural compartment. The universal engine company correlation of: “putting the wet stuff on the red stuff” is fundamental to structural fire suppression operations but is ambiguous at best in the context of today’s modern building construction, occupancies, structural systems and building features. 

    We used to discern with a measured degree of predictability, how buildings would perform, react and fail under most fire conditions. Implementing fundamentals of firefighting and engine company operations built upon eight decades of time tested and experience proven strategies and tactics continues to be the model of suppression operations. These same fundamental strategies continue to drive methodologies and curriculums in our current training programs and academies of instructions.

    The lack of appreciation and the understanding of correlating principles involving fire behavior, fuel and rate of heat release and the growth stages of compartment fires within a structural occupancy are the defining paths from which the fire service must reexamine engine company operations in order to identify with the predictability of occupancy performance during fire suppression operations thus increasing suppression effectiveness and firefighter safety.

    Our buildings have changed; the structural systems of support, the degree of compartmentation, the characteristics of materials and the magnitude of fire loading. The structural anatomy, predictability of building performance under fire conditions, structural integrity and the extreme fire behavior; accelerated growth rate and intensively levels typically encountered in buildings of modern construction during initial and sustained fire suppression have given new meaning to the term combat fire engagement.

    Doctrine of Combat Fire Engagement

    No comments

    1Considerations for changing fire flow rates, the sizing of hose line and the adequacies for fire flow demand and application rates, staffing needs for safe operations, considerations for defensive positioning and defensive operating postures must be considered, and it warrants repeating again;

    Reckless-Aggressive firefighting must be redefined in the built environment and associated with goal oriented tactical operations that are defined by risk assessed and analyzed tasks that are executed under battle plans that promote the best in safety practices and survivability within known hostile structural fire environments- with determined, effective and proactive firefighting; New Terminology and operational perspectivies to meet today’s challenges….Here’s your introduction to the new lexicon;

    • Doctrine of Combat Fire Engagement
      • Predictive Strategic Process
      • Tactical Deployment Model
      • Dynamic Tactical Deployment
      • Performance Indicators and Street Aides
        • Fire Dynamics
        • Resistance
        • Resilience
        • Structural Systems
        • Occupancy Hazard Profiles

    The Doctrine of Combat Fire Engagement, coming soon with a new persepctive and outlook on firefighting operations…are you going to be ready?

    Executing Effective Tactical Plans

    No comments

    45418t1When we look at various buildings and occupancies, past operational experiences; those that were successful, and those that were not, give us experiences that define and determine how we access, react and expect similar structures and occupancies to perform at a given alarm in the future. Naturalistic (or recognition-primed) decision-making forms much of this basis. We predicate certain expectations that fire will travel in a defined (predictable) manner that fire will hold within a room and compartment for a predictable given duration of time; that the fire load and related fire flows required will be appropriate for an expected size and severity of fire encountered within a given building, occupancy, structural system; in addition to having an appropriately trained and skilled staff to perform the requisite evolutions.

    Executing tactical plans based upon faulted or inaccurate strategic insights and indicators has proven to be a common apparent cause in numerous case studies, after action reports and LODD reports. Our years of predictable fireground experience have ultimately embedded and clouded our ability to predict, assess, plan and implement incident action plans and ultimately deploy our companies-based upon the predictable performance expected of modern construction and especially those with engineered structural systems.

    FDNY Brooklyn Box 4080: 17 Vandalia Avenue 12.18.98

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    12-18-2009 12-24-25 PMTake a moment to look back at an incident: On December 18, 1998, Three FDNY Firefighters died in-the line of duty while conducting suppression and rescue operations at  fire on the tenth floor of 10-story high-rise apartment building for the elderly.  At 0454 hours Brooklyn transmitted box 4080 for a top floor fire at 17 Vandalia Avenue in the Starrett City development complex. The sprawling complex is located on Brooklyn’s south shore in the Spring Creek section. The 10 story 50 x 200 fireproof building is used as a senior citizen’s residence. Engine 257 and ladder 170, both quartered in Canarsie, were assigned 1st due and arrived within 4 minutes. By that time the fire already could be seen blowing through two windows. Second and 3rd alarms were quickly transmitted.

    As the 1st due Ladder Company, L170′s duty is to search the fire floor. Lieutenant Joseph Cavalieri, and fire fighters Christopher Bopp and James Bohan ascended 10 flights of stairs with extinguishers and forcible entry tools. Their mission was to rescue the resident of apartment 10-D who was believed trapped inside.

    NIOSH INVESIGATIVE REPORT SUMMARY (F99-01) On December 18, 1998, several fire companies and fire fighters responded at 0454 hours to a reported fire on the tenth floor of a 10-story high-rise apartment building for the elderly. The fire had been burning for 20 to 30 minutes before it was called in because the resident attempted to put the fire out with small pans of water. As the fire fighters approached the building from the rear, an orange glow was observed in the window of Apartment 10D. As the fire fighters were arriving in front of the high-rise, a call was received from Central Dispatch that a female resident in the apartment next door to the fire apartment was trapped in her apartment and needed help. Several fire fighters entered the lobby area, and some took the stairs to the ninth floor, while others took the elevator to the ninth floor. A Lieutenant and two fire fighters on Ladder 170 (the victims), along with the Lieutenant on Engine 290, took the B-stairs from the ninth floor to the tenth floor, and entered the hallway, in search of the fire, while 4 fire fighters on Engine 290 were flaking out the hose line on the ninth floor and in the stairwell between the ninth and tenth floor in preparation for hookup. During this same time period, other fire fighters had gone to the tenth floor A-stairwell landing to attempt a hose line hookup to the standpipe in the landing. Engine Company 257 fire fighters, who were attempting to make a hook-up on the fire floor landing, experienced trouble with the heat, heavy smoke, and heavy insulation on the standpipe and were forced to abandon this hook-up. The Lieutenant on Engine 290 and the victims, who were on the B-side, were approaching the center smoke doors (see diagram), when the Lieutenant radioed his driver on the outside, and asked, “Where is the fire?” The driver radioed back, the fire is in the rear, towards exposure 4. The Lieutenant on Engine 290 then left the tenth floor, descended the stairs to the ninth floor and helped his men drag the hose to the A-stairwell, where they met up with fire fighters on Engine 257, who assisted them in stretching their line and hook-up on the ninth floor. The victims proceeded through the center smoke doors in search of the fire. From the information obtained during this investigation, it is believed the victims found the fire apartment, with the door partially opened, allowing smoke and hot gases to enter the hallway. They then opened the door fully, the wind pushed the fire and extreme heat in the apartment into the hallway, and a flashover occurred, exposing the victims to extreme radiant heat that potentially elevated their body core temperature. The last radio transmission from the victims was a Mayday call. When the victims were found, all were unresponsive, they were treated at the scene and taken to the hospital where they were pronounced dead by the attending physician.

    This wind-driven fire event and the lessons-learned contributed directly to the current body of research and new insights on emerging strategies and tactics. The NIOSH Investigative Report HERE.  NIST References on Wind Driven Fire Research HERE . FDNewYork.com HERE. New York Times Archived Articles, HERE and HERE. Photos and legacy, HERE

    Take the time to remember FDNY Lt. Joseph Cavaleiri, FF Christopher Bopp and Firefighter James Bohan from Ladder 170

    Predicated Building Performance

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    6When we look at various buildings and occupancies, past operational experiences; those that were successful, and those that were not, give us experiences that define and determine how we access, react and expect similar structures and occupancies to perform at a given alarm in the future. Naturalistic (or recognition-primed) decision-making forms much of this basis.

    We predicate certain expectations that fire will travel in a defined (predictable) manner that fire will hold within a room and compartment for a given duration of time, that the fire load and related fire flows required will be appropriate for an expected size and severity of fire encountered within a given building, occupancy, structural system. That may be true for conventional or legacy structures, but what about modern construction and engineered structural systems? Same expectations?…….

    What do you think?

    There’s a great series of photos depicting initial operations at a small-sized (square foot) single family residential occupancy fire that captures fire and smoke behavior, HERE and HERE

    Take at look the at this residential fire and interior attack that injured a number of Maryland Firefighters HERE

    Take a moment to look back at an incident: On December 18, 1998, Three FDNY Firefighters died in-the line of duty while conducting suppression and rescue operations at fire on the tenth floor of 10-story high-rise apartment building for the elderly. This wind-driven fire event and the lessons-learned contributed directly to the current body of research and new insights on emerging strategies and tactics. NIOSH Report HERE. NIST References HERE

    Take the time to remember FDNY Lt. Joseph Cavaleiri, FF Christopher Bopp and Firefighter James Bohan from Ladder 170

    Wind Driven Mansion Fire

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    A million dollar Baltimore County, Maryland  home was destroyed Sunday December 13, 2009  by a fire that tore through the 4,700-square-foot structure with such intensity that firefighters were forced to battle the flames from the exterior. Shortly after 21:00 hours, Baltimore County Fire Dispatch alerted crews for Fire Box 50-2 at 12607 Nancy Lee Court in the Worthington Trace subdivision in the Chestnut Ridge area. As firefighters were responding, dispatch advised they were receiving multiple calls to 911, with some reporting the entire house was on fire. While en route to the scene, Chestnut Ridge Volunteer Fire Company Captain Dan Uddeme reported heavy fire was visible and requested a 2nd alarm and a Tanker Strike Team as the house sits in an area without fire hydrants. Upon arrival, Capt. Uddeme reported fire had consumed the entire 2nd floor and roof area and was spreading. Firefighters were forced to use exterior operations due to the heavy volume of fire. Responding units set up for rural water operations, shuttling more than 17,000 gallons of water from an underground tank on Greenspring Avenue and Walnut Avenue near the scene. Reisterstown Volunteer Fire Companys Engine 412 was also utilized for its Compressed Air Foam System, with several handlines and the ladder pipe from Glyndon Volunteers Truck 404 flowing foam. The Baltimore County Fire Investigation Division is investigating to determine the fires cause and origin. Video and data was obtained from Michael Schwartzberg’s Firepix1075 . Additional photos, HERE and newsreports, HERE

    While watching the video, take the time to listen to the wind howling across the mic and observe the intesity level of the fire severity and propogation in the Charlie side. This provides an opportunity for those that are not familiar with the NIST Wind Driven Fire Studies or the PWC (VA) Kyle Wilson LODD to take some time to read about the affects of wind on incident operations, strategies and tactical personnel safety. This was a 4,700 SF large volume residential structure. Think about the performance and your deparment’s capabilities? Remember, it’s not “just” a house fire

    Take a look at the Prince William County (VA) Fire & Rescue case study information related to Technician I Kyle Wilson – LODD Report. This event: Technician Kyle Wilson died in the line of duty on April 16, 2007 while performing search and rescue operations at a house fire on Marsh Overlook Drive, located in the Woodbridge area of Prince William County. On that day, Technician Wilson was part of the firefighter staffing on Tower 512 which responded to the house fire that was dispatched at 0603 hours. The Prince William County area was under a high wind advisory as a nor’eastern storm moved through the area. Sustained winds of 25 mph with gusts up to 48 mph were prevalent in the area at the time of the fire dispatch to Marsh Overlook Drive. Initial arriving units reported heavy fire on the exterior of two sides of the single family house and crews suspected that the occupants were still inside the house sleeping because of the early morning hour. A search of the upstairs bedroom commenced for the possible victims. A rapid and catastrophic change of fire and smoke conditions occurred in the interior of the house within minutes of Tower 512’s crew entering the structure. Technician Wilson became trapped and was unable to locate an immediate exit out of the hostile environment. Mayday radio transmissions were made by crews and by Technician Kyle Wilson of the life-threatening situation. Valiant and repeated rescue attempts to locate and remove Technician Wilson were made by the firefighting crews during extreme fire, heat and smoke conditions. Firefighters were forced from the structure as the house began to collapse on them and intense fire, heat and smoke conditions developed. Technician Wilson succumbed to the fire and the cause of death was reported by the medical examiner to be thermal and inhalation injuries.

    National Institute of Standards and Technology – NIST Wind Driven Fire Research HERE Smoke and heat spreading through the corridors and the stairs of a building during a fire can limit building occupants’ ability to escape and can limit fire fighters’ ability to rescue them.  Changes in the building’s ventilation or presence of an external wind can increase the energy release of the fire.  This can also increase the spread of fire gases through the building.  In some cases, such as the Cook County Administration Building fire in October 2003, the fire gas flow, into the corridors and the stairway prevented fire fighters from suppressing the fire from inside the structure.  This fire resulted in 6 building occupant fatalities and fire fighter injuries in the stairway.  The Fire Department of New York City has experienced many wind driven fire incidents which have resulted in fire fighter fatalities and injuries.

    What tactics or tools are appropriate for use with a wind driven fire and how should the tactics or tools be implemented?  Positive Pressure Ventilation (PPV) is being used by fire departments on smaller structures, such as single family homes, to control the fire flow by introducing pressure from the front door and venting the house through a strategic exit opening.  If done correctly, this tactic can remove significant amounts of heat and smoke from the structure, thus improving the fire fighters’ working environment and improving the chances of survival for the building occupants.  NIST has completed several studies which have a two fold impact: 1) providing guidance on the safe use of PPV and 2) characterizing and validating the modeling of PPV with a computational fluid dynamics (CFD) computer model, so that the model can be used as a training tool for the fire service. Fire Chief Magazine article HERE

  • A video of one of the wind driven fire experiments showing the pulsing flames out of the window. Pulsing Fire(83 MB)
  • A video of one of the wind driven fire experiments showing the deployment of a Wind Control Device (WCD). WCD Deployment. (40 MB)
  • A 4-view video of one of the wind driven fire experiments on the 7th floor. Governor’s Island Wind Driven Fire (368 MB)
  • A 4-view video of one of the wind driven fire experiments conducted where the wind control curtain is deployed. The video is 4 times real time. WDF Curtain Deploy (486 MB)
  • An 8-view video of experiment number five conducted at the Large Fire Building at NIST’s Gaithersburg Campus which examined the impact of a WCD on a wind driven fire.  The video is 4 times real time. Experiment 5-Oct View (450MB)
  • An 8-view video of experiment number eight conducted at the Large Fire Building at NIST’s Gaithersburg Campus which examined the impact of externally applied water, solid stream and fog stream, at 160 gpm.  The video is 4 times real time. Experiment 8- Oct View (419MB)