Responsibility of supplemental type certificate holders to provide written permission for alterations.

1. Law
2. CFR 14
3. Aeronautics and Space
4. Federal Aviation Administration, Department of Transportation
5. Aircraft
6. Certification Procedures for Products and Articles
7. Supplemental Type Certificates
8. Responsibility of supplemental type certificate holders to provide written permission for alterations.

§ 21.120 Responsibility of supplemental type certificate holders to provide written permission for alterations.

A supplemental type certificate holder who allows a person to use the supplemental type certificate to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA.

[Doc. No. FAA-2003-14825, 71 FR 52258, Sept. 1, 2006]

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