STC ST04725NY

ST04725NY Seat Air Systems 7701 Woodley Avenue, Suite 100 Van Nuys CA 91406 25 Title 14, Code of Federal Regulations T00001SE The Boeing Company 777-300ER The Refurbishment of Frst Class Suites in accordance with:

(1) Master Data List, SAS-22-015-MDL Rev IR, dated: October 10,2023 or later FAA approved revision.

(2) Instructions for Continued Airworthiness (ICA) SAS-22-015-ICA, Revision A, dated September 5, 2023, or later FAA accepted revision. The ICA and its contents must be incorporated into the operator's maintenance program.

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. See Continuation sheet 3 of 3 October 10, 2023 October 11, 2023 January 9, 2024 ODA administrator ODA-834634-NE 3

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ST04725NY Date of Issuance: October 11, 2023 Date Amended: January 9, 2024

3. This STC is applicable to all serial numbers for the Make: The Boeing Company, Models: 777-300ER.

Certification Basis:

Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the The Boeing Company, Model 777-300ER is as follows:

(1) The type certification basis for The Boeing Company, Model 777-300ER is shown on the TCDS T00001SE for parts not changed or not affected by the change.

(2) The certification basis for parts changed or affected by the change since the reference date of application, October 10, 2023, is based upon part 25 as amended by Amendment 25-98 with the exception of those above amendment 25-98, listed below.

Regulations at later amendment than 25-98

14 CFR Part Amdt.

25.613(a)(b)(d)(e) 25-112

25.853(a)(d) 25-116

25.1301(a)(1)(2)(4) 25-123 ----------END---------- 3 3

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