STC ST11359DS

Part 25 of the Federal Aviation R egulations. (See Page 3 for complete certification basis)

Original Product --Type Certificate N umber:

Installation of a UHF Radio in accordance with GDC Technics Master Data List S009-MDL, Revision (J), dated July 27, 2020 or later FAA approved revision.

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

2. In addition to the basic aircraft maintenance manuals, the aircraft must be maintained in accordance with FAA approved Instruction for Airworthiness ICA Document S009-TP-05-00, revision (003) Airworthiness Limitations, dated 07/29/2020 or later FAA approved revision.

3. This STC requires the installation of STC ST11358DS.

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

GDC Technics, LLC 2060 Eagle Parkway Fort Worth, Texas 76177 T00001SE M ake: The Boeing Company M odel: 777-300ER Series

Date of application: February 10, 2020

Date of issuance: July 30, 2020 Date reissued:

B y direction of the A dministrator

(Signature) Robert Miller, ODA Administrator GDC Technics, LLC. Fort Worth, TX ODA-834545-SW

(Title)

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

(Address of transferee)

(Number and street)

(City, State, and Zip code)

from (Name of grantor) (Print or type)

(Address of grantor)

(Number and street)

(City, State, and Zip code)

Signature of grantor (In ink):

Supplemental Type Certificate Number: ST11359DS Date of issuance: July 30, 2020 Date of amendment:

Date of reissue:

Certification Basis (continued)

Based on 14 CFR §§ 21.115, 21.101 and the FAA policy for significant changes in FAA Order 8110.48A, the certification basis for The Boeing Company 777-300ER Series aircraft Installation of a UHF Radio is as follows:

a. The type certification basis for The Boeing Company 777-300ER Series is shown on TCDS T00001SE for parts not changed or not affected by the change.

b. The certification basis for parts changed or affected by the change since the reference date of application, February 10, 2020, is based upon TCDS T00001SE. Based on 14 CFR § 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48A, the certification basis for this modification was determined to be:

Regulations at the amendment level in TCDS T00001SE

25.1(a, b)(25-0), 25.29(a, b)(25-72), 25.143(a)(25-84), 25.251(a)(25-77), 25.301(b, c)(25-23), 25.303(25-23)

25.305(a-c)(25-86), 25.307(a)(25-72), 25.365(a-d)(25-87), 25.561(a-c)(25-91), 25.571(a, b)(25-96), 25.601(25-0)

25.603(a-c)(25-46), 25.605(a)(25-46), 25.609(a)(25-0), 25.611(25-23), 25.613(a-d)(25-72), 25.619 (a-c)(25-23)

25.625(a)(25-72), 25.789(a)(25-46), 25.869(a4)(25-72), 25.1301(a-d)(25-0), 25.1307(c)(25-72)

25.1309(a, b, d, e1, e2, e3i, g)(25-41), 25.1351(a)(25-72), 25.1353(a, b)(25-42), 25.1357(a, c)(25-0)

25.1363(b)(25-0), 25.1419(a)(25-72), 25.1431(c)(25-0), 25.1501(a, b)(25-42), 25.1529(25-54).

Regulations at later amendment level

25.853(a)(25-116), 25.899(a, b)(25-123).

14 CFR Part 26 Regulations

Based on 14 CFR § 21.101(g), applicable provisions of 14 CFR Part 26 are include d in the certification basis. For any future 14 CFR Part 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections.

As of the issuance date of this STC, compliance has been found for the following regulations 14 CFR §§ 26.11(c), (Amdt. No, 26-0), 26.47 (b, c), (Amdt. No, 26-1).

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