[Code of Federal Regulations]

[Title 14, Volume 1]

[Revised as of January 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 14CFR21.125]



[Page 136-137]

 

                     TITLE 14--AERONAUTICS AND SPACE

 

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

 

PART 21_CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS--Table of Contents

 

            Subpart F_Production Under Type Certificate Only

 

Sec. 21.125  Production inspection system: Materials Review Board.



    (a) Each manufacturer required to establish a production inspection 

system by Sec. 21.123(c) shall--

    (1) Establish a Materials Review Board (to include representatives 

from the inspection and engineering departments) and materials review 

procedures; and

    (2) Maintain complete records of Materials Review Board action for 

at least two years.

    (b) The production inspection system required in Sec. 21.123(c) 

must provide a means for determining at least the following:

    (1) Incoming materials, and bought or subcontracted parts, used in 

the finished product must be as specified in the type design data, or 

must be suitable equivalents.

    (2) Incoming materials, and bought or subcontracted parts, must be 

properly identified if their physical or chemical properties cannot 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 industry or 

United States specifications.

    (5) Parts and components in process must be inspected for conformity 

with the type design data at points in production where accurate 

determinations can be made.

    (6) Current design drawings must be readily available to 

manufacturing and inspection personnel, and used when necessary.



[[Page 137]]



    (7) Design changes, including material substitutions, must be 

controlled and approved before being incorporated in the finished 

product.

    (8) Rejected materials and parts must be segregated and identified 

in a manner that precludes installation in the finished product.

    (9) 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, must be processed through the 

Materials Review Board. Those materials and parts determined by the 

Board to be serviceable must be properly identified and reinspected if 

rework or repair is necessary. Materials and parts rejected by the Board 

must be marked and disposed of to ensure that they are not incorporated 

in the final product.

    (10) Inspection records must be maintained, identified with the 

completed product where practicable, and retained by the manufacturer 

for at least two years.