Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task K. Aircraft Electrical Systems

AM.II.K.K17

Knowledge

Aircraft battery troubleshooting and maintenance.

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. G-9
Glossary
heavy-duty electrical switch. Contactors are used in an aircraft electrical system to connect the battery to the main bus. Continuity tester. A troubleshooting tool that consists of a battery, a light bulb, and test leads. The test leads ... kept energized by current flowing through its coil for an indefinite period of time. The battery contactor in an aircraft electrical system is a continuous-duty solenoid. Current flows through its coil all the time the battery is connected…
Aviation Maintenance Technician Handbook - Powerplant p. 5-11
Chapter 5: Engine Starting Systems › Air Turbine Starters
relay opens. This action breaks the circuit from the positive bus to the coils of the motor, ignition, and battery cutout relays. The de-energizing of these relay coils halts the start operation. After these procedures are completed, the engine ... These procedures are presented as a guide only. The appropriate manufacturer’s instructions and approved maintenance directives should always be consulted for the aircraft involved. Air Turbine Starters Air turbine starters are designed to provide high starting torque from…
Pilot's Handbook of Aeronautical Knowledge p. 9-11
Chapter 9: Flight Manuals and Other Documents › Preventive Maintenance › Examples of Preventive Maintenance
or seat parts with replacement parts approved for the aircraft, not involving…