# 14 CFR § 27.602: Critical parts

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-14-27.602

## Section

- **Citation:** 14 CFR § 27.602
- **Heading:** Critical parts
- **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

(a) Critical part. A critical part is a part, the failure of which could have a catastrophic effect upon the rotocraft, and for which critical characteristics have been identified which must be controlled to ensure the required level of integrity.
(b) If the type design includes critical parts, a critical parts list shall be established. Procedures shall be established to define the critical design characteristics, identify processes that affect those characteristics, and identify the design change and process change controls necessary for showing compliance with the quality assurance requirements of part 21 of this chapter.
[Doc. No. 29311, 64 FR 46232, Aug. 24, 1999]

## 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-14-27.602. Check the current official text before relying on it. Not legal advice.