AM.II.M.K5

From the FAA library

• Aviation Maintenance Technician Handbook - Powerplantp. 9-7
  Chapter 9: Engine Fire Protection Systems › Engine Fire Extinguishing System › Fire Extinguishing Agents

  Fire Extinguishing Agents The fixed fire extinguisher systems used in most engine fire protection systems are designed to dilute the atmosphere with an inert agent that does not support combustion. Many systems use perforated tubing or discharge nozzles to distribute…

• Aviation Maintenance Technician Handbook - Airframep. 17-9
  Chapter 17: Fire Protection Systems › Extinguishing Agents & Portable Fire Extinguishers › Halogenated Hydrocarbons

  Figure 17-10. Halogenated Hydrocarbons 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 ... been granted an exemption because of its unique operational and fire safety requirements. Halon has been the fire extinguishing agent of choice in civil aviation because it is extremely effective on a per unit weight basis over a wide range…

• 14 CFR Part 121 — Operating Requirements: Domestic, Flag, and Supplemental OperationsOpen
  14 CFR § 121.265 Fire-extinguishing agents.

  Fire-extinguishing agents. 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. If methyl bromide or any other toxic extinguishing agent is used, provisions ... because of discharging the fire extinguisher on the ground or in flight when there is a defect in the extinguishing system. If a methyl bromide system is used, the containers must be charged with dry agent and sealed…