CFR > Title 14 - Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER C—AIRCRAFT (parts 21 to 50) > PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT > SUBPART D—Design and Construction (§27.601 to §27.873) > 27.603—Materials.

27.603—Materials.

The suitability and durability of materials used for parts, the failure of which could adversely affect safety, must—
(a) Be established on the basis of experience or tests;
(b) Meet approved specifications that ensure their having the strength and other properties assumed in the design data; and
(c) Take into account the effects of environmental conditions, such as temperature and humidity, expected in service.

Code of Federal Regulations

(Secs. 313(a), 601, 603, 604, Federal Aviation Act of 1958 ( 49 U.S.C. 1354(a), 1421, 1423, 1424 ); and sec. 6(c) of the Dept. of Transportation Act ( 49 U.S.C. 1655(c) ))

Code of Federal Regulations

[Doc. No. 5074, 29 FR 15695, Nov. 24, 1964, as amended by Amdt. 27-11, 41 FR 55469, Dec. 20, 1976; Amdt. 27-16, 43 FR 50599, Oct. 30, 1978]