How long must records of aircraft maintenance be kept according to FAR?

The requirement for maintaining aircraft maintenance records is outlined in the FARs, specifically in 14 CFR Part 91. The regulation states that the records must be retained for a minimum of one year after the maintenance is performed or for such a duration as specified by the Administrator. This ensures that there is an adequate historical record of the aircraft's maintenance activities, which is essential for safety, compliance, and operational integrity.

Retaining maintenance records for at least one year or in accordance with FAA directives helps to establish a traceable history of repairs and inspections, providing valuable information for future maintenance activities and compliance checks. This serves not only the airworthiness of the aircraft but also ensures that regulatory requirements are met.