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The Pilots Desk
US-FAA14 CFR 91.403

General

Read the official rule

In plain English

The owner or operator is primarily responsible for keeping the aircraft in an airworthy condition — including complying with Airworthiness Directives (ADs) and ensuring required maintenance and inspections are done and recorded.

Key points

  • Owner/operator owns airworthiness responsibility.
  • Comply with all applicable ADs.
  • Ensure inspections and maintenance are performed and logged.

Common pitfalls

  • Assuming the mechanic or flight school tracks your ADs for you.

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

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 8, 2026.