Preflight Pass

Powerplant · Lesson 32 of 40

Engine Fire Protection Systems

Classes of fire and engine fire zones, how thermal switch, thermocouple, optical, pneumatic and continuous-loop detectors work, which agents fight which fires, how fixed extinguishing systems discharge, and how both halves of the system are inspected and maintained.
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Part of A&P Complete

This lesson is in the full course

  • Identify the classes of fire, the designated powerplant fire zones and the aircraft that must have engine fire protection
  • Explain how thermal switch, thermocouple, optical, pneumatic and continuous-loop fire detectors signal a fire
  • Match extinguishing agents to classes of fire and describe how a fixed engine extinguishing system discharges
  • Describe the inspection, troubleshooting and servicing of detection loops, containers and discharge cartridges