14 CFR 21.319 - Design changes.

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There are 4 Updates appearing in the Federal Register for 14 CFR Part 21. View below or at eCFR (GPOAccess)
§ 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 2015-11-17

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

  • 2016-12-30; vol. 81 # 251 - Friday, December 30, 2016
    1. 81 FR 96572 - Revision of Airworthiness Standards for Normal, Utility, Acrobatic, and Commuter Category Airplanes
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Final rule.
      Effective August 30, 2017.
      14 CFR Parts 21, 23, 35, 43, 91, 121, and 135

Title 14 published on 2015-11-17.

The following are only the Rules published in the Federal Register after the published date of Title 14.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2016-12-30; vol. 81 # 251 - Friday, December 30, 2016
    1. 81 FR 96572 - Revision of Airworthiness Standards for Normal, Utility, Acrobatic, and Commuter Category Airplanes
      GPO FDSys: XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Final rule.
      Effective August 30, 2017.
      14 CFR Parts 21, 23, 35, 43, 91, 121, and 135