# STC SA5916NM-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Installation and activation of a Collins Radio TCAS II system, dual Smith Industries TCAS Type Vertical Speed Indicator, and dual Mode S Transponder System - Applied: March 6, 1992 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) - Certificate PDF: https://openairdocs.org/files/sha256/df/66/df668a481d1289f4f495a95f7dd0e16e5ecd85c10978b5610da909d3765a1b89 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/235987CE47673595862579970057E314.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA5916NM-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE)) ## 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 A20WE for Special Conditions.) Original Product Type Certificate Number : A20WE Make: Boeing Model: 747-222B Series Description of Type Design Change : Installation and activation of a Collins Radio TCAS II system, dual Smith Industries TCAS Type Vertical Speed Indicator, and dual Mode S Transponder System, in accordance with United Air Lines DAS-1-WE Approved Drawing List No. 5916 da ted May 31, 1993, or late r FAA approved revisions. United Air Lines Airplane Flight Manual Supplement to FAA Approved Flight Manual No. D6 137303.122 dated May 31, 1993, or later FAA approved revisions is required as part of the modification. Limitations and Conditions: This approval should not be extended to ot her aircraft of this model 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 a pproved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this STC must be included in the permanent records of the modified 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. Date of application : March 6, 1992 Date of issuance : May 31, 1993 Date reissued : November 30, 2011 ( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( 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): U.S. GPO 1987-763-28 ## Every issue (1) - November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/df/66/df668a481d1289f4f495a95f7dd0e16e5ecd85c10978b5610da909d3765a1b89) --- 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.