The aircraft repeatedly reports compass errors at a launch site next to large steel structures, even after recalibration attempts. What should the crew do?

• A.Take off quickly and let the compass settle in the air
• B.Move the launch point away from the metal structures and recheck before flying
• C.Disable all positioning warnings and fly manually

Why

Large metal objects can distort the compass and cause erratic flight behavior, including toilet-bowl circling or flyaways. Relocating away from the interference source addresses the cause instead of masking the warning.

Source: FAA-G-8082-22 Ch. 5 · ACS knowledge area: Emergency Procedures · From the Emergency Procedures & Human Factors practice bank (HUM-020).

Practice this category as a full test

More Compass Error Before Takeoff questions

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• Why must lost-link and return-to-home settings be confirmed before takeoff rather than after a link failure occurs?
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• A low-battery warning appears while the aircraft is still over the work area with useful pictures left to take. What is the correct response?
• A removed lithium battery begins smoking and catches fire on the ground. What is a sound immediate response?