# 14 CFR § 27.603: Materials

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-14-27.603

## Section

- **Citation:** 14 CFR § 27.603
- **Heading:** Materials
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 14—Aeronautics and Space > CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER C—AIRCRAFT > PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT > Subpart D—Design and Construction > General

## Text

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.
(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)))
[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]

## Nearby sections

- [14 CFR § 27.601 § 27.601 Design.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.601.md)
- [14 CFR § 27.602 § 27.602 Critical parts.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.602.md)
- [14 CFR § 27.603 § 27.603 Materials.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.603.md)
- [14 CFR § 27.605 § 27.605 Fabrication methods.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.605.md)
- [14 CFR § 27.607 § 27.607 Fasteners.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.607.md)
- [14 CFR § 27.609 § 27.609 Protection of structure.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.609.md)
- [14 CFR § 27.610 § 27.610 Lightning and static electricity protection.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.610.md)
- [14 CFR § 27.611 § 27.611 Inspection provisions.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.611.md)
- [14 CFR § 27.613 § 27.613 Material strength properties and design values.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.613.md)
- [14 CFR § 27.619 § 27.619 Special factors.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.619.md)
- [14 CFR § 27.621 § 27.621 Casting factors.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.621.md)
- [14 CFR § 27.623 § 27.623 Bearing factors.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.623.md)
- [14 CFR § 27.625 § 27.625 Fitting factors.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.625.md)
- [14 CFR § 27.629 § 27.629 Flutter.](https://www.frixlaw.com/law-library/statutes/ecfr-14-27.629.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-14-27.603. Check the current official text before relying on it. Not legal advice.