---
kind: "section"
citation: "14 C.F.R. § 21.24"
title: "14"
number: "21.24"
heading: "Issuance of type certificate: primary category aircraft."
url: "https://uscodex.org/cfr/14/21.24"
---

# §21.24. Issuance of type certificate: primary category aircraft.

- (a) **The applicant is entitled to a type certificate for an aircraft in the primary category if—**
  - (1) **The aircraft—**
    - (i) Is unpowered; is an airplane powered by a single, naturally aspirated engine with a 61-knot or less Vso stall speed as determined under [part 23](/cfr/14/part23.md) of this chapter; or is a rotorcraft with a 6-pound per square foot main rotor disc loading limitation, under sea level standard day conditions;
    - (ii) Weighs not more than 2,700 pounds; or, for seaplanes, not more than 3,375 pounds;
    - (iii) Has a maximum seating capacity of not more than four persons, including the pilot; and
    - (iv) **Has an unpressurized cabin.**
  - (2) **The applicant has submitted—**
    - (i) Except as provided by [paragraph (c)](#c) of this section, a statement, in a form and manner acceptable to the FAA, certifying that: the applicant has completed the engineering analysis necessary to demonstrate compliance with the applicable airworthiness requirements; the applicant has conducted appropriate flight, structural, propulsion, and systems tests necessary to show that the aircraft, its components, and its equipment are reliable and function properly; the type design complies with the airworthiness standards and noise requirements established for the aircraft under [§ 21.17(f)](/cfr/14/21.17.md?p=f); and no feature or characteristic makes it unsafe for its intended use;
    - (ii) The flight manual required by [§ 21.5(b)](/cfr/14/21.5.md?p=b), including any information required to be furnished by the applicable airworthiness standards;
    - (iii) Instructions for continued airworthiness in accordance with [§ 21.50(b)](/cfr/14/21.50.md?p=b); and
    - (iv) **A report that—** summarizes how compliance with each provision of the type certification basis was determined; lists the specific documents in which the type certification data information is provided; lists all necessary drawings and documents used to define the type design; and lists all the engineering reports on tests and computations that the applicant must retain and make available under [§ 21.49](/cfr/14/21.49.md) to substantiate compliance with the applicable airworthiness standards.
  - (3) **The FAA finds that—**
    - (i) The aircraft complies with those applicable airworthiness requirements approved under [§ 21.17(f)](/cfr/14/21.17.md?p=f) of this part; and
    - (ii) **The aircraft has no feature or characteristic that makes it unsafe for its intended use.**
- (b) An applicant may include a special inspection and preventive maintenance program as part of the aircraft's type design or supplemental type design.
- (c) For aircraft manufactured outside of the United States in a country with which the United States has a bilateral airworthiness agreement for the acceptance of these aircraft, and from which the aircraft is to be imported into the United States—
  - (1) The statement required by [paragraph (a)(2)(i)](#a-2-i) of this section must be made by the civil airworthiness authority of the exporting country; and
  - (2) The required manuals, placards, listings, instrument markings, and documents required by paragraphs [(a)](#a) and [(b)](#b) of this section must be submitted in English.

## Notes

### Amendments

[Doc. No. 23345, 57 FR 41367, Sept. 9, 1992, as amended by Amdt. 21-75, 62 FR 62808, Nov. 25, 1997; Doc. No. FAA-2015-1621, Amdt. 21-100, 81 FR 96689, Dec. 30, 2016]

### Source

Source: Docket No. 5085, 29 FR 14564, Oct. 24, 1964, unless otherwise noted.

### Authority

Authority: 42 U.S.C. 7572; 49 U.S.C. 106(f), 40105, 40113, 44701-44702, 44704, 44707, 44709, 44711, 44713, 44715, 45303.

### Amendments

[Doc. No. 23345, 57 FR 41367, Sept. 9, 1992, as amended by Amdt. 21-75, 62 FR 62808, Nov. 25, 1997; Doc. No. FAA-2015-1621, Amdt. 21-100, 81 FR 96689, Dec. 30, 2016]