FAA 107 Aircraft Maintenance & Pre-flight Inspection 2

Question 1

During a pre-flight inspection, you notice a small crack in one of the propeller blades. What should you do?

Accepted Answer

Replace the propeller before flying

Answer

A cracked propeller is a structural defect that can cause catastrophic failure during flight, so it must be replaced before any flight operation.

Question 2

Which of the following best describes the purpose of checking motor temperatures after a test hover during pre-flight?

Accepted Answer

To detect abnormal heat that may indicate motor wear or electrical issues

Answer

Abnormally hot motors after a short hover can indicate bearing wear, winding shorts, or excessive friction that could lead to motor failure in flight.

Question 3

What is the recommended action when a sUAS has experienced a hard landing but shows no visible damage?

Accepted Answer

Perform a thorough inspection of frame, props, and motors before flying again

Answer

Hard landings can cause hidden micro-cracks in the frame or internal motor damage that isn't visible but can cause failures during subsequent flights.

Question 4

When should a remote pilot check that the compass is properly calibrated on a sUAS?

Accepted Answer

After any significant firmware update, change of operating location, or compass warning

Answer

Compass recalibration is needed after firmware updates, relocating to a new area far from the last calibration site, or when the flight controller shows a compass error.

Question 5

A remote pilot notices that one landing gear leg is bent after a previous flight. What is the correct course of action?

Accepted Answer

Repair or replace the landing gear before the next flight

Answer

Damaged landing gear can affect stability during takeoff and landing, and continued use can cause further damage to the airframe or payload.

FAA Practice Test

FAA Practice Test

FAA 107 Aircraft Maintenance & Pre-flight Inspection 2