OperationsDifficulty 2/5
Which preflight item is a Part 107 requirement rather than only a best practice?
- ACalibrating the compass at every location
- BAssessing the operating environment, local weather, airspace and ground hazards before flight
- CReplacing propellers every 10 flights
- DFiling a flight plan
Show answer and rationale
Correct: B. §107.49 requires the remote PIC to assess the operating environment (weather, airspace, hazards), ensure crew are briefed, and confirm the aircraft is safe for flight. Manufacturer practices vary; flight plans are not required.
- A — Manufacturer-dependent, not regulatory.
- C — No regulatory interval exists.
- D — Part 107 does not require flight plans.