h) Each holder of a Parts Manufacturer Approval shall establish and maintain a fabrication inspection system that ensures that each completed part conforms to its design data and is safe for installation on applicable type certificated products. The system shall include the following:
(1) Incoming materials used in the finished part must be as specified in the design data.
(2) Incoming materials must be properly identified if their physical and chemical properties cannot otherwise be readily and accurately determined.
(3) Materials subject to damage and deterioration must be suitably stored and adequately protected.
(4) Processes affecting the quality and safety of the finished product must be accomplished in accordance with acceptable specifications.
(5) Parts in process must be inspected for conformity with the design data at points in production where accurate determination can be made. Statistical quality control procedures may be employed where it is shown that a satisfactory level of quality will be maintained for the particular part involved.
(6) Current design drawings must be readily available to manufacturing and inspection personnel, and used when necessary.
(7) Major changes to the basic design must be adequately controlled and approved before being incorporated in the finished part.
(8) Rejected materials and components must be segregated and identified in such a manner as to preclude their use in the finished part.
(9) Inspection records must be maintained, identified with the completed part, where practicable, and retained in the manufacturer's file for a period of at least 2 years after the part has been completed.
