Applicability

This regulation introduces the subpart that establishes recordkeeping and reporting requirements for all Part 121 air carriers (scheduled airlines and commercial operators). It serves as the gateway to the specific rules that follow, which detail what records must be kept, how long they must be retained, and what reports must be submitted to the FAA.

In practical terms, this means every airline operating under Part 121 must maintain comprehensive documentation systems. These records cover everything from maintenance logs and crew training records to flight operations data and safety reports. The FAA uses these records during inspections and investigations to verify regulatory compliance and track safety trends.

For pilots, this matters because your airline's recordkeeping obligations directly affect your employment records, training documentation, flight time logs, and duty time tracking. The airline must maintain accurate records of your qualifications, medical certificates, and operational activities—documentation that follows you throughout your aviation career.

*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.*