FAR § 121.265 Fire-extinguishing agents – Aviation Regulations. Only methyl bromide, carbon dioxide, or another agent that has been shown to provide equivalent extinguishing action may be used as a fire-extinguishing agent…. Table of Contents. PART 1—DEFINITIONS AND ABBREVIATIONS. § 1.1 General definitions.
FAR § 121.265 Fire-extinguishing agents – Aviation Regulations
Carbon dioxide (CO2) is an effective extinguishing agent. It is most often used in fire extinguishers that are available on the ramp to fight fires on the exterior of the aircraft, such as engine or APU fires. CO2 has been used for many years to extinguish flammable fluid fires and fires involving electrical equipment.
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What type of fire extinguishing agent is used in aircraft?
For over 45 years, halogenated hydrocarbons (Halons) have been practically the only fire extinguishing agents used in civil transport aircraft. However, Halon is an ozone depleting and global warming chemical, and its production has been banned by international agreement.
What is the fire extinguishing agent for Apu fire extinguishers?
In the airborne case, APU fire bottles are similarly activated but it is usual for automatic APU fire detection during ground operation to trigger automatic shutdown and fire extinguisher activation. Until recently, the most common extinguishing agent was Halon 1301 for all Engines/APUs fitted to civil transport aircraft.
What halocarbons are used in fire extinguishers?
Halon replacement agents found to be compliant to date include the halocarbons HCFC Blend B, HFC-227ea, and HFC-236fa. Carbon dioxide (CO2) is an effective extinguishing agent. It is most often used in fire extinguishers that are available on the ramp to fight fires on the exterior of the aircraft, such as engine or APU fires.
Why is carbon dioxide used in fire extinguishers?
Carbon dioxide (CO2) is an effective extinguishing agent. It is most often used in fire extinguishers that are available on the ramp to fight fires on the exterior of the aircraft, such as engine or APU fires. CO2 has been used for many years to extinguish flammable fluid fires and fires involving electrical equipment.
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Aviation fire extinguishing agent (Halon gas) Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher