STC ST00108IB

IMPORT ST00108IB Lufthansa Technik AG Weg Beim Jaeger 193 22335 Hamburg, Germany Part 25 Title 14 Code of Federal Regulations T00001SE The Boeing Company 777-200/-300ER Series; 777F Series

1. Installation of riblets film on fuselage must be in accordance with Lufthansa Technik Supplemental Type Definition Document Number STDD11-21/01M, Issue 04, Rev. 00, dated November 14, 2024, or later EASA approved revisions.

(See Description of Type Design Change Continued on Page 3 of 3)

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

(See Limitations and Conditions Continued on Page 3 of 3) April 5, 2023 April 18, 2023 December 31, 2024 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3

IMPORT ST00108IB 3

IMPORT ST00108IB Date Amended: December 31, 2024

Description of Type Design Change (continued):

2. Maintenance must be in accordance with Lufthansa Technik Instructions for Continued Airworthiness Number A-00-22/26-ICA, Issue 15, Rev. 00, dated October 1, 2024, or later EASA accepted revisions.

3. Operation must be in accordance with Lufthansa Technik Airplane Flight Manual Supplement Number A-00-22/26-AFM, Issue 12, Rev. 00, dated October 16, 2024, or later EASA approved revisions.

2. If the holder agrees to permit another person to use the certificate to alter the product, the holder shall give the other person written evidence of that permission.

3. This STC is applicable to all serial numbers for this Make-Model.

4. Operation must be in accordance with the "Certificate Limitations" section of Lufthansa Technik Airplane Flight Manual Supplement referenced under the Description of the Type Design section.

5. Maintenance must be in accordance with the "Airworthiness Limitation" section of Lufthansa Technik Instructions for Continued Airworthiness referenced under the Description of the Type Design section.

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