Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task H. Aircraft Instrument Systems

AM.II.H.K3

Knowledge

Magnetic compass swinging 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. G-8
Glossary
taken to have its compasses “swung.” Lines are painted on the rose to mark the magnetic directions in 30° increments. Compass swinging. A maintenance procedure that minimizes deviation error in a magnetic compass. The aircraft is aligned on a compass…
Aviation Maintenance Technician Handbook - Airframe p. 10-83
Chapter 10: Aircraft Systems › Maintenance of Instruments & Instrument Systems › Autopilot System Maintenance
cleaning, lubrication, and an operational checkout of the system. Consult the manufacturer’s maintenance manual for all of these procedures. With the autopilot disengaged, the flight controls should function smoothly. The resistance offered by the autopilot servos should not affect ... autopilot system using the switch on the autopilot controller. Figure 10-140. The compass rose on this airport ramp can be used to swing an aircraft magnetic compass…
Aviation Maintenance Technician Handbook - Airframe p. 10-82
Chapter 10: Aircraft Systems › Maintenance of Instruments & Instrument Systems › Magnetic Compass Maintenance & Compensation
An example of how to perform this calibration process is given below…