FAA Private Pilot Helicopter (PRH)RegulationsMedium
A privately owned helicopter, not operated for hire, received its most recent annual inspection on June 10, 2023, as recorded in the maintenance logbook. Per 14 CFR 91.409, by what date must the next annual inspection be completed for the aircraft to remain airworthy?
- AJune 30, 2024
- BJuly 10, 2024
- CJune 10, 2024
- DDecember 31, 2024
Show answer & explanationAnswer & explanation
Correct answer: A. June 30, 2024
14 CFR 91.409(a) requires an annual inspection within the preceding 12 calendar months. Calendar months are counted to the end of the month, so an inspection performed in June 2023 remains valid through the end of June 2024 (June 30, 2024).
Why the other options are wrong
- B. Adds an extra month beyond the correct 12-calendar-month period.
- C. Uses the exact calendar date rather than the end-of-month calendar month rule.
- D. This incorrectly extends the interval by six months.
Annual Inspection Requirement
Under 91.409(a), most aircraft must receive an annual inspection within the preceding 12 calendar months to remain airworthy, valid through the end of the 12th month.
- Required within preceding 12 calendar months
- Calendar months expire at the end of the month, not the exact day
- Applies to aircraft not operated under a progressive or approved inspection program
Memory trick: An annual is like a birthday party that lasts until the end of the month