Maintenance and Modifications
FAA Revises AC on Suspected Unapproved Parts
The revised AC changes the organization responsible for unapproved parts to the Aircraft Certification Service.

The FAA is seeking comments on a proposed change to Advisory Circular 21-29C, "Detecting and Reporting Suspected Unapproved Parts," dated July 22, 2008, and subsequent changes. The revised AC 21-29D, "Detecting and Reporting Suspected Unapproved Parts" changes the responsible organization from the FAA’s Flight Standards Service to the Aircraft Certification Service, deletes irrelevant material, reorganizes selected sections and clarifies selected definitions.