# STC ST09850DS - Type: Supplemental type certificate - Status: Current, Issued - Holder: United Airlines, United States - Description: Series Starlink to IFE & AID Interface Installation - Applied: January 15, 2026 - Status date: June 12, 2026 - Product: Aircraft, Large Airplane - Certification basis: Part 25 - Data sheets: [TCDS A28NM](https://openairdocs.org/tcds/A28NM) - Certificate PDF: https://openairdocs.org/files/sha256/0c/69/0c693fbb35b95a9e32242e14dc5a1b036ce7d3810f52de1296d30dc2f132c9c5 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103125893420260623141315.0001 - DRS record last changed: June 23, 2026 - Page: https://openairdocs.org/stc/ST09850DS ## ADs that name it (0) None. ## Approved models (3) - Airbus SAS A321-252NX ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus SAS A321-271NX ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus SAS A321-271NY ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) ## 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. ST09850DS United Airlines 4933 Wright Road Houston, TX 77032 Part 25 & 26 the Title 14, Code of Federal Regulations A28NM Airbus A321-271NX/-271NY/-252NX (1) The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. (continued on page 3) 01/15/2026 03/25/2026 06/12/2026 Raju Tumarada, ODA Administrator 3 ER4420R01908 Rev B, June 8, 2026. ODA project number: 98501. (1) Airbus A321 Series Starlink to IFE & AID Interface Installation in accordance with United Airlines Master Drawing List 4420DA16763 Rev A, dated March 17, 2026, or later FAA approved revision. (continued on page 3) ST09850DS 3 ST09850DS (2) Supplemental Instructions for Continued Airworthiness, Document Number 4420R01909C Rev A, dated June 10, 2026 or later approved FAA revision. (3) No EWIS ICA is required for this modification. (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. (3) Concurrent installation of FAA STC ST12325SE and ST12326SE is required for all aircraft modified by this STC. Certification Basis: Based on 14 CFR § 21.115 and § 21.101, and the FAA policy for design changes that are not significant in FAA Order 8110.48, the certification basis for this modification is as follows: a. The type certification basis for parts not changed or not affected by the change is shown in TCDS A28NM. b. The certification basis for parts changed or affected by this modification since the reference application date January 15, 2026 is based upon the type certification basis shown in TCDS A28NM with the following exceptions. 14 CFR Part Amdt 14 CFR Part Amdt 25.869 113 25.981 125 25.899 123 25.1423 115 ST09850DS issued March 25, 2026 ST09850DS amended June 12, 2026 --END-- 3 3 Add Page ## Every issue (2) - June 12, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/0c/69/0c693fbb35b95a9e32242e14dc5a1b036ce7d3810f52de1296d30dc2f132c9c5) - March 25, 2026: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/7b/b3/7bb3ccc9891ac5898545483fb91e52a20b12536c5a955a36ab7ee83184ed14c1) --- 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.