Home › Part 107 Practice Tests › Maintenance & Preflight Inspection Questions › Question 11
When should the compass be calibrated?
- A.Before every single battery change, regardless of manufacturer guidance
- B.When required by the manufacturer's instructions, such as after a prompt from the system or a change that affects the sensor
- C.Only once, when the aircraft is first purchased
Correct answer
B. When required by the manufacturer's instructions, such as after a prompt from the system or a change that affects the sensor
Why
Compass calibration is performed in accordance with the manufacturer's procedures and prompts. Unnecessary or poorly performed calibrations can create problems, so the manufacturer's guidance controls when and how it is done.
Source: FAA-G-8082-22 Ch. 12 · ACS knowledge area: Maintenance and Preflight Inspection Procedures · From the Maintenance & Preflight Inspection practice bank (MNT-011).