14 CFR 21.319 - Design changes.

§ 21.319 Design changes.
(a) Classification of design changes.
(1) A “minor change” to the design of an article produced under a PMA is one that has no appreciable effect on the approval basis.
(2) A “major change” to the design of an article produced under a PMA is any change that is not minor.
(b) Approval of design changes.
(1) Minor changes to the basic design of a PMA may be approved using a method acceptable to the FAA.
(2) The PMA holder must obtain FAA approval of any major change before including it in the design of an article produced under a PMA.
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§ 21.319 Design changes.

(a) Classification of design changes.

(1) A “minor change” to the design of an article produced under a PMA is one that has no appreciable effect on the approval basis.

(2) A “major change” to the design of an article produced under a PMA is any change that is not minor.

(b) Approval of design changes.

(1) Minor changes to the basic design of a PMA may be approved using a method acceptable to the FAA.

(2) The PMA holder must obtain FAA approval of any major change before including it in the design of an article produced under a PMA.

Title 14 published on 2015-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 14 CFR Part 21 after this date.

  • 2015-10-15; vol. 80 # 199 - Thursday, October 15, 2015
    1. 80 FR 61975 - Final Primary Category Airworthiness Design Standards; AutoGyro USA, LLC (AutoGyro) Model Calidus Gyroplane
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Issuance of final Airworthiness Design Standards.
      These airworthiness design standards are effective November 16, 2015.
      14 CFR Part 21