SkyDrill

Authority for major propeller repairs

Aviation Mechanic Powerplant (AMP) practice question 10 of 10 on Propellers. ACS element AM.III.M.R1 · difficulty: recall. Want to answer it in a timed quiz? Use the Aviation Mechanic Powerplant (AMP) practice mode.

Question bank updated 2026-09-22

QUESTIONRepairs to propellers are often limited to minor repairs. Who is permitted to accomplish a major repair on a propeller?

  1. AA certificated propeller repair station
  2. BA certificated mechanic with a powerplant rating
  3. CThe aircraft owner under preventive maintenance
Show the answer and explanation

Correct answer: A. A certificated propeller repair station

  • A — correct Major repairs on propellers must be accomplished by a certificated propeller repair station; certificated mechanics are not allowed to perform them.
  • B — incorrect Certificated mechanics are specifically not allowed to perform major repairs on propellers, whatever rating they hold.
  • C — incorrect A major propeller repair falls well outside preventive maintenance and must go to an appropriately rated repair facility, so an owner cannot accomplish it.

BACKGROUND

Propeller inspection findings frequently drive the decision of who may do the work. Repairs to propellers are often limited to minor repairs, and certificated mechanics are not allowed to perform major repairs on propellers; those must be accomplished by a certificated propeller repair station. If a propeller is involved in an accident, or has had a ground strike or sudden stoppage with the possibility of internal damage, the engine and propeller manufacturers' maintenance manual recommendations must be followed and the propeller disassembled and inspected. Keeping airworthiness directives (ADs) and service bulletins (SBs) current for a propeller is vitally important, and compliance with ADs is required for the aircraft to be legally airworthy. All work performed on the propeller, including AD and SB compliance, should be noted in the propeller logbook.

STUDY TIP

Before starting any propeller repair, decide whether it is minor or major, because a major repair is outside a mechanic's privileges and belongs to a certificated propeller repair station.

KEY POINTS

  • Major propeller repairs must be done by a certificated propeller repair station.
  • Certificated mechanics are limited to minor propeller repairs.
  • All propeller work, including AD and SB compliance, is recorded in the propeller logbook.

SOURCES

  • sources/amp-powerplant/ch07.txt "Composite Propeller Inspection" (repair limitations)
  • sources/amp-powerplant/ch07.txt propeller inspection requirements (ADs, SBs, propeller logbook)
Practice the Aviation Mechanic Powerplant (AMP) test →Timed 100-question exam, by ACS area, or review your misses. Free.
MORE ON PROPELLERS

SkyDrill is not affiliated with the FAA. This is an original practice item based on FAA-H-8083-32B Aviation Maintenance Technician Handbook – Powerplant, and 14 CFR part 43. Regulations and handbooks are revised; confirm details against the current edition.