A complete inspection of an aircraft and engine required every 12 calendar months on certificated aircraft, performed by an A&P technician holding an Inspection Authorization, is called:

• A. Annual inspection
• B. Routine check
• C. Major overhaul
• D. Airworthiness inspection

Answer: (A)

The main idea being tested is the formal, yearly maintenance check required for certificated aircraft. This complete inspection, done every 12 calendar months by an A&P mechanic who holds an Inspection Authorization, is called an annual inspection. It’s defined by the regulations as the comprehensive check of the airframe, engine, propeller, and related systems, using the annual inspection checklist, with the IA signing off to show the aircraft meets airworthiness standards. This differs from a routine check, which is a smaller, more frequent inspection, and from a major overhaul, which is an extensive, non‑periodic overhaul. The term airworthiness inspection isn’t the standard designation for this 12‑month cycle.