Home › Part 107 Practice Tests › Maintenance & Preflight Inspection Questions › Question 12
What is the proper approach to inertial measurement unit (IMU) calibration?
- A.Calibrate it in your hand while moving, so it learns motion
- B.Skip calibration warnings if the aircraft still takes off
- C.Follow the manufacturer's instructions for when and how to calibrate, on a suitable surface as directed
Correct answer
C. Follow the manufacturer's instructions for when and how to calibrate, on a suitable surface as directed
Why
The IMU provides attitude information the flight controller depends on. Calibration must follow the manufacturer's procedure, and a persistent warning is a reason to resolve the issue rather than fly anyway.
Source: FAA-G-8082-22 Ch. 12 · ACS knowledge area: Maintenance and Preflight Inspection Procedures · From the Maintenance & Preflight Inspection practice bank (MNT-012).