14 C.F.R. § 23.603 Materials and workmanship.
Title 14 - Aeronautics and Space
(a) The suitability and durability of materials used for parts, the failure of which could adversely affect safety, must— (1) Be established by experience or tests; (2) Meet approved specifications that ensure their having the strength and other properties assumed in the design data; and (3) Take into account the effects of environmental conditions, such as temperature and humidity, expected in service. (b) Workmanship must be of a high standard. [Doc. No. 4080, 29 FR 17955, Dec. 18, 1964, as amended by Amdt. 23–17, 41 FR 55464, Dec. 20, 1976; Amdt. 23–23, 43 FR 50592, Oct. 10, 1978]
Title 14: Aeronautics and Space
PART 23—AIRWORTHINESS STANDARDS: NORMAL, UTILITY, ACROBATIC, AND COMMUTER CATEGORY AIRPLANES
Subpart D—Design and Construction
§ 23.603 Materials and workmanship.
