(b) The certificate holder's manual must contain the programs required by §121.367 that must be followed in performing maintenance, preventive maintenance, and alterations of that certificate holder's airplanes, including airframes, aircraft engines, propellers, appliances, emergency equipment, and parts thereof, and must include at least the following:
(1) The method of performing routine and nonroutine maintenance (other than required inspections), preventive maintenance, and alterations.
(2) A designation of the items of maintenance and alteration that must be inspected (required inspections), including at least those that could result in a failure, malfunction, or defect endangering the safe operation of the aircraft, if not performed properly or if improper parts or materials are used.
(3) The method of performing required inspections and a designation by occupational title of personnel authorized to perform each required inspection.
(4) Procedures for the reinspection of work performed pursuant to previous required inspection findings ( buy-back procedures ).
(5) Procedures, standards, and limits necessary for required inspections and acceptance or rejection of the items required to be inspected and for periodic inspection and calibration of precision tools, measuring devices, and test equipment.
(6) Procedures to ensure that all required inspections are performed.
(7) Instructions to prevent any person who performs any item of work from performing any required inspection of that work.
(8) Instructions and procedures to prevent any decision of an inspector, regarding any required inspection from being countermanded by persons other than supervisory personnel of the inspection unit, or a person at that level of administrative control that has overall responsibility for the management of both the required inspection functions and the other maintenance, preventive maintenance, and alterations functions.
(9) Procedures to ensure that required inspections, other maintenance, preventive maintenance, and alterations that are not completed as a result of shift changes or similar work interruptions are properly completed before the aircraft is released to service.
(c) The certificate holder must set forth in its manual a suitable system (which may include a coded system) that provides for preservation and retrieval of information in a manner acceptable to the Administrator and that provides—
(1) A description (or reference to data acceptable to the Administrator) of the work performed;
(2) The name of the person performing the work if the work is performed by a person outside the organization of the certificate holder; and
(3) The name or other positive identification of the individual approving the work.
[Doc. No. 6258, 29 FR 19210, Dec. 31, 1964, as amended by Amdt. 121–94, 37 FR 15983, Aug. 9, 1972; Amdt. 121–106, 38 FR 22378, Aug. 20, 1973]