# STC SA5985NM-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Modifies the ARINC Communications Addressing and Reporting System (ACARS) Management Unit of the aircraft. The installation is in accordance with United Air Lines, DAS-1-WE, Approved Drawing List No. 5985, dated December 11, 1993, or later FAA approved revisions. - Applied: November 19, 1993 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A28NM](https://openairdocs.org/tcds/A28NM) - Certificate PDF: https://openairdocs.org/files/sha256/0d/b3/0db32292bb807ca1db9e76ee1f883a6e92ebba35466bdb1904c7b7d4fb55073d - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3B4782A427B624A9862579920052BE9F.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA5985NM-D ## ADs that name it (0) None. ## Approved models (6) - Airbus A320-211 ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus A320-212 ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus A320-214 ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus A320-231 ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus A320-232 ([TCDS A28NM](https://openairdocs.org/tcds/A28NM)) - Airbus A320-233 ([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. This Certificate issued to United Air Lines, Inc. 600 Jefferson Street Houston, Texas 77002 Part 25 of the Federal Aviation Regulations. Ref. T.C. Data Sheet A28NM for Special Conditions. A28NM Airbus Industrie A320-200 Series Description of Type Design Change: Modifies the ARINC Communications Addressing and Reporting System (ACARS) Management Unit of the aircraft. The in stallation is in accordance with United Air Lines, DAS-1-WE, Approved Drawing List No. 5985, da ted December 11, 1993, or later FAA approved revisions. Limitations and Conditions: The approval of this installati on applies basically to the A320-200 series only. This approval should not extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is dete rmined by the installer that the interrelationship between this change and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. If th e holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of application: November 19, 1993 Date of issuance: December 11, 1993 Date reissued: November 30, 2011 Date amended: March 7, 1997 ( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title) NOTE: **DO NOT DELETE THIS PAGE.** **DO NOT ADD ANY DATA TO THIS PAGE.** **THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.** ## Every issue (1) - November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0d/b3/0db32292bb807ca1db9e76ee1f883a6e92ebba35466bdb1904c7b7d4fb55073d) --- 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.