# STC ST11360DS - Type: Supplemental type certificate - Status: Current, Issued - Holder: GDC Technics LLC, United States - Description: Installation of a Ka Band Antenna - Applied: September 25, 2019 - Status date: July 9, 2020 - Product: Aircraft, Large Airplane - Certification basis: Part 21, Part 25, Part 26 - Data sheets: [TCDS T00001SE](https://openairdocs.org/tcds/T00001SE) - Certificate PDF: https://openairdocs.org/files/sha256/3b/4d/3b4da85dfaa43daebfa0623d2fa55f3e73a4094eb9280a86805e9ef9d0c50dc0 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/49F32987D456ACF3862586220066B5DB.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/ST11360DS ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 777-300ER Series ([TCDS T00001SE](https://openairdocs.org/tcds/T00001SE)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. Part 25 of the Federal Aviation R egulations. (See Page 3 for complete certification basis) Original Product --Type Certificate N umber: Installation of a Ka Band Antenna in accordance with GDC Technics Master Data List S003-MDL, Revision (C), dated June 23, 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 Instructions for Airworthiness ICA Document S003-TP-05-00, revision (005) Airworthiness Limitations, dated 06/17/2020 or later FAA approved revision. 3. Equivalent Level of Safety Findings have been made for the following regulation(s): 14 CFR 25.251(b) Vibration and Buffeting (documented in TSB ELOS Memorandum ODA -834545-SW-2019-1-F-1). 4. Additional FAA approval is required for this installation. The installation must be evaluated to ensure it complies with the applicable airworthiness standards. 5. If the holder agrees to permit another person to use this certificate to alte r 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: September 25, 2019 Date of issuance: July 09, 2020 Date reissued: B y directi on 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: ST11360DS Date of issuance: July 09, 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 Ka Band Antenna 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, September 25, 2019, is based upon TCDS T00001SE. Based on 14 CFR § 21.115 and 21.101, a nd 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, b, d)(25-77), 25.301(a, b, c)(25-23), 25.303(25-23) 25.305(a-c)(25-86), 25.307(a)(25-72), 25.365(a-g)(25-87), 25.561(a-c)(25-91), 25.571(a, b, e)(25-96) 25.581(a-c)(25-23), 25.601(25-0), 25.603(a-c)(25-46), 25.605(a)(25-46), 25.607(c)(25-23), 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), 25.629(a-e)(25-77), 25.831(a)(25-41) 25.841(a)(25-87), 25.869(a4)(25-72), 25.1301(a-c)(25-0), 25.1419(a)(25-72), 25.1529(25-54). Regulations at later amendment level 25.853(a)(25-116), 25.981(a3)(25-125) 14 CFR Part 26 Regulations Based on 14 CFR § 21.101(g), applicable provisions of 14 CFR Part 26 are included 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 (c), (Amdt. No, 26-1). --------------------------------------------END------------------------------------------ ## Every issue (1) - July 9, 2020: Issued, Current. [certificate](https://openairdocs.org/files/sha256/3b/4d/3b4da85dfaa43daebfa0623d2fa55f3e73a4094eb9280a86805e9ef9d0c50dc0) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.