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Who may conduct an annual versus a 100-hour inspection

Aviation Mechanic General (AMG) practice question 2 of 21 on Inspection Concepts and Techniques. ACS element AM.I.K.K4 · difficulty: standard. Want to answer it in a timed quiz? Use the Aviation Mechanic General (AMG) practice mode.

Question bank updated 2026-09-22

QUESTIONA certificated airframe and powerplant (A&P) mechanic who does not hold an inspection authorization (IA) is asked to perform both a 100-hour inspection and an annual inspection. Which inspection may this mechanic conduct?

  1. AOnly the 100-hour inspection
  2. BOnly the annual inspection
  3. CBoth the 100-hour and the annual inspection
Show the answer and explanation

Correct answer: A. Only the 100-hour inspection

  • A — correct A certificated A&P mechanic may conduct a 100-hour inspection, but an annual inspection must be conducted by an A&P mechanic who holds an inspection authorization.
  • B — incorrect The annual inspection is the one that requires an inspection authorization; a mechanic without IA cannot perform it.
  • C — incorrect Although the scope of the two inspections is identical, the annual inspection requires an IA, which this mechanic does not hold.

BACKGROUND

The annual inspection and the 100-hour inspection are identical in scope and detail, both following Appendix D to part 43. The handbook identifies two significant differences between them. The first is the person authorized to perform them: a certificated A&P mechanic can conduct a 100-hour inspection, whereas an annual inspection must be conducted by a certificated A&P mechanic holding an inspection authorization (IA). The second difference is the authorized overflight of up to 10 hours beyond the 100-hour limit to reach the place of inspection.

STUDY TIP

When a scenario names a mechanic without IA, the annual inspection is out of reach; the 100-hour inspection is not.

KEY POINTS

  • 100-hour inspection: any certificated A&P mechanic may perform it.
  • Annual inspection: requires an A&P mechanic with inspection authorization (IA).
  • Scope and detail of the two inspections are otherwise identical.

SOURCES

  • FAA-H-8083-30B ch10 "Annual/100-Hour Inspections"
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SkyDrill is not affiliated with the FAA. This is an original practice item based on FAA-H-8083-30B Aviation Maintenance Technician Handbook – General, 14 CFR part 43 and part 65. Regulations and handbooks are revised; confirm details against the current edition.