Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task J. Aircraft Fuel Systems

AM.II.J.S14

Skill

Locate fuel system defueling procedures.

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. 14-21
Chapter 14: Aircraft Fuel Systems › Fuel Tanks › Integral Fuel Tanks
When entering and performing maintenance on an integral fuel tank, all fuel must be emptied from the tank and strict safety procedures must be followed. Fuel vapors must be purged from the tank and respiratory equipment must be used ... typical flexible aircraft fuel line with braided reinforcement. Aircraft using integral fuel tanks normally have sophisticated fuel systems that include in-tank boost pumps. There are usually at least two pumps in each tank that deliver fuel to the engine…
Aviation Maintenance Technician Handbook - Airframe p. 14-47
Chapter 14: Aircraft Fuel Systems › Fuel Tank Repair › Integral Tanks
Integral Tanks Occasionally, an integral tank develops a leak at an access…
Aviation Maintenance Technician Handbook - Airframe p. 14-16
Chapter 14: Aircraft Fuel Systems › Aircraft Fuel Systems › Helicopter Fuel Systems
fuel pressure warning lights are also common on jet transport aircraft. The sensors for these are located in the boost pump outlet line. They give an indication of possible boost pump failure. Fuel quantity gauges are important features ... aircraft. Indications exist for all tanks on a transport category aircraft. Often, these use a capacitance type fuel quantity indication system and a fuel totalizer as is discussed later in this chapter. The location of fuel instrumentation varies depending…