Requirement for supplemental type certificate.

CFR · 2024-01-01 · US · Title 14

(a) If a person holds the TC for a product and alters that product by introducing a major change in type design that does not require an application for a new TC under § 21.19, that person must apply to the FAA either for an STC, or to amend the original type certificate under subpart D of this part. (b) If a person does not hold the TC for a product and alters that product by introducing a major change in type design that does not require an application for a new TC under § 21.19, that person must apply to the FAA for an STC. (c) The application for an STC must be made in the form and manner prescribed by the FAA.

official document · source cfr-2024 · id 14:§ 21.113