# STC ST00051SE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aviation Technical Services, United States
- Description: Installation of a traffic alert and collision avoidance system(TCAS II).
- Applied: April 4, 1993
- Status date: October 24, 2018
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/cc/c8/ccc858dd20639f1c9e82a4b23eca587ed4dddd02140564fe0f828be8f47e2abe
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F5CB125AC0C3DBA386258335004C627B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00051SE

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 737-400 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## 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.

Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate

Number ST00051SE

This certificate, issued to Aviation Technical Services 3121 109th Street SW Everett, WA 98204-3500

Part 25 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A16WE Make: Boeing Model: 737-400

Description of the Type Design Change: Installation of the Collins Traffic Alert and Collision Avoidance Systems (TCAS II) Transmitter/Receiver in accordance with Tramco Top Drawing 93-046, Revision D, dated January 18, 1995, or later FAA-approved revisions.

Limitations and Conditions: The approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other 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 approved modifications will introduce no adverse effect upon the airworthiness of the aircraft.

A copy of this certificate and FAA Approved Flight Manual Supplement must be maintained as part of the permanent records of the aircraft. If the holder agrees to permit another person to use this certificate the holder shall give the other person written evidence of the permission.

Date of application: April 4, 1993 Date reissued: October 24, 2018 Date of issuance: December 27, 1993 Date amended: May 12, 1995; July 31, 2007

FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator

(Signature)

Manager, Seattle ACO Branch (Title)

## Every issue (2)

- October 24, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/cc/c8/ccc858dd20639f1c9e82a4b23eca587ed4dddd02140564fe0f828be8f47e2abe)
- July 31, 2007: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/55/c7/55c772455aea0ffcca217c1e896498db3aff9fa906ab7fa66f29ee51c304765e)

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