FAA Aviation Mechanic Airframe (AMA)Airframe InspectionEasy
An aircraft owner asks why the annual inspection must occur within a specific timeframe. According to 14 CFR 91.409, the annual inspection must be performed within how many calendar months of the previous annual inspection?
- A100 flight hours
- B12 calendar months
- C24 calendar months
- D6 calendar months
Show answer & explanationAnswer & explanation
Correct answer: B. 12 calendar months
14 CFR 91.409(a) requires that no aircraft may be operated unless it has had an annual inspection within the preceding 12 calendar months.
Why the other options are wrong
- A. 100 flight hours applies to the separate 100-hour inspection requirement
- C. 24 calendar months applies to altimeter/transponder checks, not annuals
- D. 6 months is not a standard inspection interval under Part 91
Annual Inspection Interval
A complete inspection required every 12 calendar months for all Part 91 aircraft, performed only by an IA holder or an appropriately rated repair station.
- Required under 14 CFR 91.409(a)
- Due at the end of the 12th month after the last annual, not the exact date
- Must be signed off by an IA-certificated mechanic
Memory trick: 12 months for annual, 24 for altimeter, 100 hours for 100-hour