This AC describes methods the Administrator accepts per Title 14 of the Code of Federal Regulations (14 CFR) parts 21, 23, 25, 27, 29, 43, and 145 for the development, qualification, and approval of bias and radial aircraft tire retreads, their repair and process specifications, and the use of special nondestructive inspection (NDI) techniques.

Advises of a required limited repair station rating to perform X-ray inspection of the Beech 18 wing and center section spar, and of the procedures for application.

Provides information on developing the repair station employee training program required under 14 of the Code of Federal Regulations (14 CFR) part 145, section 145, 163, categories of training, training program components, and sample training programs.

Provides information and guidance material that may be used by repair station certificate holders, operating under FAR Part 145, to design and implement an Internal Evaluation Program.

This advisory circular (AC) provides informational material for all repair station certificate holders and/or applicants under Title 14 of the Code of Federal Regulations (14 CFR) part 145 to develop and evaluate a Repair Station Manual (RSM) and Quality Control Manual (QCM).