A person working under the supervision of a certified mechanic with an airframe and powerplant rating is not authorized to perform a 100 hour inspection.

A person working under the supervision of a certified mechanic with an airframe and powerplant rating is not authorized to perform a 100 hour inspection.

• A. True
• B. False
• C. Only with additional training
• D. Only if the aircraft is not for hire

Answer: (A)

The key idea is that the 100-hour inspection must be performed by a certificated mechanic with the appropriate rating. A person who is working under the supervision of a certified mechanic does not gain the authority to perform that inspection themselves. They can assist and learn, but the actual inspection and the official sign‑off must be done by someone who holds the proper mechanic certificate (A&P) or an FAA‑authorized inspector. So, even though they’re supervised by a certified mechanic, they are not authorized to perform a 100-hour inspection on their own.

The key idea is that the 100-hour inspection must be performed by a certificated mechanic with the appropriate rating. A person who is working under the supervision of a certified mechanic does not gain the authority to perform that inspection themselves. They can assist and learn, but the actual inspection and the official sign‑off must be done by someone who holds the proper mechanic certificate (A&P) or an FAA‑authorized inspector.

So, even though they’re supervised by a certified mechanic, they are not authorized to perform a 100-hour inspection on their own.