Aviation Mechanic - General, Airframe, and Powerplant › III. Powerplant › Task E. Engine Fire Protection Systems

AM.III.E.K4

Knowledge

Fire extinguishing agents, types of systems, and operation.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 17-7
Chapter 17: Fire Protection Systems › Fire Detection/Overheat Systems › Fire Zones
open and signal a lack of detector integrity. The system then does not operate during test. Figure 17-8. Aircraft detection system control module. Fire Zones Powerplant compartments are classified into zones based on the airflow through them. 1. Class ... provided. 5. Class X zone—area of heavy airflow and of unusual construction, making uniform distribution of the extinguishing agent very difficult. Areas containing deeply recessed spaces and pockets between large structural formers are of this type. Tests indicate agent…
Aviation Maintenance Technician Handbook - Powerplant p. 9-8
Chapter 9: Engine Fire Protection Systems › Engine Fire Extinguishing System › Pressure Indication
discharge valve assembly. Special assemblies having solenoid-operated or manually-operated seat type valves are also available. Two types of cartridge disc-release techniques are used. Standard release type uses a slug driven by explosive energy to rupture a segmented ... wide range of diagnostics are utilized to verify the fire extinguisher agent charge status. A simple visually indicated gauge is available, typically a vibration-resistant helical bourdon-type indicator. [see Figure 9-9] A combination gauge switch visually indicates actual…
Aviation Maintenance Technician Handbook - Airframe p. 17-10
Chapter 17: Fire Protection Systems › Flight Deck & Cabin Interiors › Extinguisher Types
6. Specialized dry powder—class D. (Follow the recommendations of the extinguisher…