§21.19 Changes requiring a new type certificate.

Each person who proposes to change a product must apply for a new type certificate if the FAA finds that the proposed change in design, power, thrust, or weight is so extensive that a substantially complete investigation of compliance with the applicable regulations is required.

[Docket No. 28903, 65 FR 36265, June 7, 2000; as amended by Amdt. 21–77, 66 FR 56989, Nov. 14, 2001]