Which group is qualified to perform the 100-hour inspections on powerplants, propellers, or any components thereof and may release the same to service?

Which group is qualified to perform the 100-hour inspections on powerplants, propellers, or any components thereof and may release the same to service?

• A. Certificated mechanics with a powerplant rating
• B. Uncertificated technicians
• C. Airframe mechanics only
• D. General aviation pilots

Answer: (A)

The main idea is that who can legally perform a 100-hour inspection and release the aircraft to service is determined by their FAA mechanic certification rating. To inspect and sign off a 100-hour inspection on the engine, propeller, or any components of the powerplant, you need a certificated mechanic who holds a powerplant rating. That rating specifically authorizes work on the powerplant and its related parts, and it allows the inspector to release the aircraft after the inspection if everything is found compliant. Uncertificated technicians don’t have FAA authorization to perform or release airworthiness inspections. An airframe mechanic, while skilled for airframe work, isn’t automatically qualified to inspect or sign off on engine and propeller systems unless they also hold a powerplant rating. General aviation pilots aren’t authorized to perform or release such inspections either; maintenance and release tasks require certificated personnel with the appropriate rating. So, the best answer is a certificated mechanic with a powerplant rating because that certification directly covers the scope of work (engine, propeller, and related components) and the release to service after a compliant inspection.

The main idea is that who can legally perform a 100-hour inspection and release the aircraft to service is determined by their FAA mechanic certification rating. To inspect and sign off a 100-hour inspection on the engine, propeller, or any components of the powerplant, you need a certificated mechanic who holds a powerplant rating. That rating specifically authorizes work on the powerplant and its related parts, and it allows the inspector to release the aircraft after the inspection if everything is found compliant.

Uncertificated technicians don’t have FAA authorization to perform or release airworthiness inspections. An airframe mechanic, while skilled for airframe work, isn’t automatically qualified to inspect or sign off on engine and propeller systems unless they also hold a powerplant rating. General aviation pilots aren’t authorized to perform or release such inspections either; maintenance and release tasks require certificated personnel with the appropriate rating.

So, the best answer is a certificated mechanic with a powerplant rating because that certification directly covers the scope of work (engine, propeller, and related components) and the release to service after a compliant inspection.