Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task F. Ground Operations and Servicing

AM.I.F.R2

Risk management

Connecting external power equipment to an aircraft.

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. 9-85
Chapter 9: Aircraft Electrical System › Wire Installation & Routing › Wire Shielding
on the left side, (left equipment rack) the backup AC ground return…
Aviation Maintenance Technician Handbook - Airframe p. 12-4
Chapter 12: Hydraulic & Pneumatic Power Systems › Hydraulic Fluid Contamination › Contamination Control
Use only clean, lint-free cloths to wipe or dry the component…
Pilot's Handbook of Aeronautical Knowledge p. 7-30
Chapter 7: Aircraft Systems › Electrical System
battery. Electrical energy stored in a battery provides a source of electrical power for starting the engine and a limited supply of electrical power for use in the event the alternator or generator fails. Most DC generators do not produce ... alternator is more constant throughout a wide range of engine speeds. Some aircraft have receptacles to which an external ground power unit (GPU) may be connected to provide electrical energy for starting. These are very useful, especially during cold weather…