Service Difficulty Report

The following Federal Aviation Regulations apply:

§ 121.703 Mechanical reliability reports.

§ 121.704 Service difficulty reports (structural).

§ 125.410 Service difficulty reports (structural)

§ 135.415 Service difficulty reports

§ 145.63 Reports of defects or unairworthy conditions

For general aviation, see Advisory Circular 20-109 for guidance.

CFRs