Home › Part 107 Practice Tests › Maintenance & Preflight Inspection Questions › Question 1
During a preflight inspection you find a small nick and a hairline crack near the hub of one propeller. What is the correct action?
- A.Smooth the nick with fine sandpaper and fly only at low altitude
- B.Mark the crack and monitor it over the next few flights
- C.Replace the propeller with one meeting the manufacturer's specifications before flight
Correct answer
C. Replace the propeller with one meeting the manufacturer's specifications before flight
Why
A cracked or nicked propeller can fail under load and should not be flown. Damaged propellers are replaced, not repaired in the field, using parts that meet the manufacturer's specifications.
Source: FAA-G-8082-22 Ch. 12 · ACS knowledge area: Maintenance and Preflight Inspection Procedures · From the Maintenance & Preflight Inspection practice bank (MNT-001).