The production inspection system mentioned in paragraph 21.143(1A)(c) must provide for the following:
(a) properly identifying incoming materials, and bought or subcontracted parts, if their physical or chemical properties cannot be readily and accurately determined;
(b) suitable storage and adequate protection of materials subject to damage and deterioration;
(c) carrying out processes affecting the quality and safety of the finished Class I, Class II, Class III or unapproved Class I product in accordance with acceptable industry or Australian specifications;
(d) inspecting parts and components, at points during the production process at which accurate determinations can be made, to determine whether:
(i) parts and components for a Class I product conform to the type design data for the product; or
(ii) parts and components for a Class II, Class III or unapproved Class I product conform to the product design data for the product;
(e) ensuring that current design drawings are readily available to manufacturing and inspection personnel, and used when necessary;
(f) ensuring that design changes, including material substitutions, are controlled before being incorporated in:
(i) a finished Class I product; or
(ii) a Class II, Class III or unapproved Class I product;
(g) segregating and identifying rejected materials and parts in a manner that precludes installation in the finished Class I, Class II, Class III or unapproved Class I product;
(h) a system for processing through the Materials Review Board any materials and parts that are withheld because of departures from design data or specifications, and that are to be considered for installation in a finished Class I, Class II, Class III or unapproved Class I product;
(i) a system for identifying and reinspecting materials and parts determined by the Materials Review Board to be serviceable if rework or repair is necessary;
(j) maintaining inspection records, identified with the finished Class I, Class II, Class III or unapproved Class I product where practicable, and retaining them for at least 2 years.
Source FARs section 21.125 modified.