What documentation is required for a sign-off involving a major alteration or repair?

What documentation is required for a sign-off involving a major alteration or repair?

• A. Description of alteration/repair, data used, the certifying authority, sign-off, and any Form 337 or FAA documentation as applicable.
• B. The date of alteration and technician’s name.
• C. A simple note in the maintenance log.
• D. Only pilot approval.

Answer: (C)

Major alterations or repairs must be documented with a complete, traceable record that shows the work was done to approved data and released as airworthy. The entry should include a description of the alteration or repair, the engineering or data used to perform it, the certifying authority (the person signing off and their certificate/authorization), the date, and the actual sign-off. If the work involves FAA-approved data or meets the criteria for a major alteration or repair, Form 337 or other FAA documentation must be prepared and filed as applicable. This level of documentation ensures the modification is properly reviewed, approved, and traceable in the aircraft’s records. A simple maintenance log note or relying solely on pilot approval does not satisfy the requirements for major work.

Major alterations or repairs must be documented with a complete, traceable record that shows the work was done to approved data and released as airworthy. The entry should include a description of the alteration or repair, the engineering or data used to perform it, the certifying authority (the person signing off and their certificate/authorization), the date, and the actual sign-off. If the work involves FAA-approved data or meets the criteria for a major alteration or repair, Form 337 or other FAA documentation must be prepared and filed as applicable. This level of documentation ensures the modification is properly reviewed, approved, and traceable in the aircraft’s records. A simple maintenance log note or relying solely on pilot approval does not satisfy the requirements for major work.