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The Pilots Desk
US-FAA14 CFR 91.1109

Aircraft maintenance: Inspection program

Read the official rule

This regulation requires program managers operating under subpart K to create and maintain a written inspection program for each type of aircraft they operate. The program must detail what gets inspected (airframe, engines, propellers, equipment), how inspections are conducted, and when they're due (based on flight hours, calendar time, or cycles). It must also identify who schedules the inspections.

The inspection program can't be created from scratch—it must be based on an approved source, such as:

  • The manufacturer's recommended program
  • A program used by Part 121 or 135 air carriers
  • An existing FAA-approved inspection program under Parts 125 or 135
  • The program manager's own continuous airworthiness program

The program requires FAA approval through your local Flight Standards office. This ensures aircraft are systematically maintained to airworthiness standards rather than relying on ad-hoc maintenance decisions. The FAA can require changes to your approved program if necessary.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*

This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 20, 2026.