# STC SA1949NM-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Installation of DC-10-10 roll & pitch computers on DC-10-30 aircraft per COA 3-3047. This change order will replace Bendix roll computer P/N 3757319-7 and pitch computer P/N 3757320-7 with Bendix roll computer P/N 3757087-9 and pitch computer 3757121-9. The installation will be in accordance with United Air Lines, DAS-1-WE, Approved Drawing List No. 1949 dated October 9, 1984, or later FAA approved revisions and approved Airplane Flight Manual Supplement MDCJ5830 dated September 24 - Applied: September 1, 1984 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE) - Certificate PDF: https://openairdocs.org/files/sha256/d3/b2/d3b20ea95bcf2c46f3c44a45294be935fdcf7ddb821448d3fc6b4516bca0b3de - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/81B0AF1901FE818F8625799E0063DCB3.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1949NM-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company DC-10-30 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE)) ## 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. Type Certificate Data Sheet A22WE) Original Product Type Certificate Number : A22WE Boeing DC-10-30 Description of Type Design Change: Installation of DC-10-10 roll & pitch computers on DC- 10-30 aircraft per COA 3-3047. This change order will replace Bendix roll computer P/N 3757319-7 and pitch computer P/N 3757320-7 with Bendix roll computer P/N 3757087-9 and pitch computer 3757121-9. The installation will be in accordance with United Air Lines, DAS- 1-WE, Approved Drawing List No. 1949 date d October 9, 1984, or later FAA approved revisions and approved Airplane Flight Manual Supplement MDCJ5830 dated September 24, 1984. Limitations and Conditions: The approval does not extend to other aircraft of this model on which other previously approved modifications ar e incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse eff ect upon the airworthiness of that aircraft. If the 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: September 10, 1984 Date of issuance: October 9, 1984 Date reissued: November 30, 2011 ( 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/d3/b2/d3b20ea95bcf2c46f3c44a45294be935fdcf7ddb821448d3fc6b4516bca0b3de) --- 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.