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a) establishes a materials review board, to include representatives from the inspection and engineering departments, and materials review procedures; and
b) maintains complete records of materials review board action for typically five years for the purpose of continued airworthiness.
2.2.3.2 The production inspection system should provide a means whereby the materials review board may determine at least that:
a) incoming materials, and bought or subcontracted parts, used in the finished product meet the specifications indicated in the type design data;
Note.— Guidance on the interaction between manufacturer and supplier can be found in Part III, Chapter 2, 2.1.2 d).
b) incoming materials, and bought or sub-contracted parts, are properly identified, especially when their physical or chemical properties cannot be readily and accurately determined;
c) all materials are suitably stored and adequately protected from damage and deterioration;
d) processes affecting the quality and safety of the finished product are accomplished in accordance with the specifications established by the design data;
e) parts and components in process are inspected for conformity with the type design data at points in production where accurate determinations can be made;
f) current design drawings are readily available to manufacturing and inspection personnel, and used when necessary;
g) design changes, including material substitutions, are controlled and approved before being incorporated in the finished product;
h) rejected materials and parts are segregated and identified in a manner that precludes their inadvertent installation in the finished product;
i) materials and parts that are withheld because of departures from design data or specifications, and that are to be considered for installation in the finished product, are processed through the materials review board. Those materials and parts determined by the board to be serviceable should be properly identified and re-inspected if rework or repair is necessary. Materials and parts rejected by the board should be marked and disposed of to ensure that they are not incorporated in the final product; and
j) inspection records are maintained, identified with the completed product where practicable, and retained by the manufacturer for typically five years for the purpose of continued airworthiness.
2.2.4 Production test – Aircraft
2.2.4.1 The manufacturer of an aircraft under a Type Certificate only should establish a CAA-approved production flight test procedure and should flight test each aircraft in accordance with that procedure.
2.2.4.2 The production flight test procedure should include at least the following:
a) an operational check of the trim, controllability, or other flight characteristics to establish that the production aircraft has the same range and degree of control as the prototype aircraft;
b) an operational check of each part of the system operated by the crew while in flight to establish that, during flight, instrument readings are within normal range;
c) a determination that all instruments are properly marked, all placards are installed in appropriate places, and flight manuals are available in the aircraft;
d) a check of the operational characteristics of the aircraft on the ground; and
e) a check on any other items peculiar to the aircraft being tested that can best be done during the ground or flight operation of the aircraft.
2.2.5 Production test – Engines
The manufacturer of aircraft engines under a Type Certificate only should subject each engine (except rocket engines for which the manufacturer should establish a sampling technique) to an acceptable test run that includes at least the following:
a) break-in runs that include a determination of fuel and oil consumption and a determination of power characteristics at rated maximum continuous power or thrust and, if applicable, at rated take-off power or thrust; and
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