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Survey on Extinguishing Agent Preferences for Aircraft Hand-Held Extinguishers

This survey gathers insights on extinguishing agents for hand-held aircraft fire extinguishers through user feedback. The objective is to identify preferred extinguisher attributes in various aircraft compartments. The survey results include responses from US, Canadian, and European operators, and statistical analysis was conducted to prioritize attributes. Issues related to toxicity in small compartments and discharge capabilities are highlighted.

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Survey on Extinguishing Agent Preferences for Aircraft Hand-Held Extinguishers

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  1. User Preference survey for Agents used in Hand Held Extinguishers on board aircraft Harry Webster FAA William J. Hughes Technical Center Richard Mazzone The Boeing Company Giles Weyland Airbus France S.A.S. November 5, 2003

  2. Overview • This survey requests very important information from the user community on extinguishing agent properties that should be considered for use in hand held extinguishers on board aircraft in the flight deck, cabin, crew rests and accessible cargo compartments.

  3. Objective • Assemble information on specific candidate extinguishing agents • Contact users of hand held extinguishers in the aircraft industry to determine preferred agent attributes • Prepare a report summarizing the industries responses

  4. Survey Contents • Respondents were asked to rank the following extinguisher attributes in order of (1) most important to (11) least important: • Toxicity, Ergonomics, Ozone Depletion Potential, Global Warming Potential, Weight, Size and Interchangeability, Cleanup, Material Compatibility, Visual Obscuration, Maintenance and Cost

  5. Survey Results • 78 Response from US domestic operators • 6 Response from Canadian operators • 28 Responses from European operators

  6. Statistical Analysis • Raw data was tabulated returning the number of #1, #2….#11 priorities for each attribute. • A weighted value was assigned for each attribute as follows: • Attribute Weight = sum of all products: (priority times the number of occurrences)

  7. Statistical Analysis • Average occurrence for each attribute was calculated as follow: • Average occurrence = weight divided by the number of responses • The attributes were then arranged from highest priority to lowest

  8. MPS ISSUES • Toxicity in small compartments • Crew rests • Cockpits • GA aircraft / helicopters • Ability of extinguisher to discharge fully in near horizontal orientation

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