# STC SA3036WE-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Modifies aircraft to install dual Delco C-IV Inertial Navigation Systems (INS) for attitude and direction reference, navigation, and auto-pilot steering. Also adds a Sperry DG-207 Directional Gyro in the Aux position and Azimuth switching capability. The VG-DG racks are replaced by the INS Navigation units in the above configuration, but the modification permits replacing the INS Navigation units with VG-DG racks to provide triple VG-DG for attitude and direction reference only. The installation is in accordance with DAS-1-WE Approved United Air Lines Drawing List No. COA 3-2023, dated March 22, 1977, or later FAA approved revisions. United Air Lines FAA Approved Flight Manual Supplement to McDonnell Douglas Flight Manual Document Number MDC-J1010 dated February 17, 1977, or later FAA approved revision is required as part of this installation. - Applied: July 30, 1976 - 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/d2/cc/d2ccfdb467a46345b1194c9f66b748d7002f563d8749dde354c21deb5ff2f213 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/25EE5032F6DCB9AE8625799700520ADC.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA3036WE-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company DC-10-10 ([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. Number SA3036WE-D This Certificate issued to United Air Lines, Inc. 600 Jefferson Street Houston, Texas 77002 Part 25 of the Federal Aviation Regulations dated June 1974. A22WE Boeing DC-10-10 Description of Type Design Change: Modifies aircraft to install dual Delco C-IV Inertial Navigation Systems (INS) for attitude and direction refe rence, navigation, and auto-pilot steering. Also adds a Sperry DG-207 Directional Gyro in the Aux position and Azimuth switching capability. The VG-DG racks are replaced by the INS Navigation units in the above conf iguration, but the modification perm its replacing the INS Navigation units with VG-DG racks to provide triple VG-DG for attitude a nd direction reference only. The installation is in accordance with DAS-1-WE Approved United Air Lines Dr awing List No. COA 3-2023, dated March 22, 1977, or later FAA approved revisions. (Continuation on page 3.) Limitations and Conditions: The approval of this change in type design applies basically to Boeing DC-10-10 only. This approval should not be ex tended to other aircraft of this m odel on which other previously approved modifications are 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 effect upon the airworthiness of the aircraft. If the holder agrees to perm it another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. Date of application : July 30, 1976 Date of issuance : February 22, 1977 Date reissued : November 30, 2011 (Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( Title) *SEE PAGE 3 Transfer the ownership of the Supplemental Type Certificate Number to (Name of transferee) (Address of transfer) (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) Extent of Authority (if licensing agreement): Signature of grantor (In ink): U.S. GPO 1987-763-28 Number SA3036WE-D Description of Type Design Change: (Cont’d) United Air Lines FAA Approved Flight Manual Supplement to McDonnell Douglas Flight Manual Document Number MDC-J1010 dated February 17, 1977, or later FAA approved revision is required as part of this installation. ---END--- ## Every issue (1) - November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d2/cc/d2ccfdb467a46345b1194c9f66b748d7002f563d8749dde354c21deb5ff2f213) --- 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.