# STC SA1926SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: American Airlines Inc, United States
- Description: Installation of a Dalmo-Victor traffic alert and collision avoidance (TCAS) system
- Applied: July 8, 1982
- Status date: August 25, 2016
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/e0/8c/e08c69b685c106413e18dba5b76667d13c6dda69d0543356813724a2a335bcb7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DC17199C7BA3938386258058006BB131.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1926SO

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727 ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## 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.

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title SA1926SO American Airlines, Inc.

3900 N. Mingo Road Engineering Dept., MD 208 Tulsa, Oklahoma 74116 Civil Air Regulations.

4b

1. Installation of a Dalmo-Victor Traffic Alert and Collision Avoidance (TCAS) System in accordance with Piedmont Airlines Engineering Authorizations: EA 727-191 Issue "D" EA 727-253 Issue "A", EA 727-267 Issue "A", and Engineering Order EO 014240, dated March 5, 1986 or later FAA approved revisions.

2. FAA approved Airplane Flight Manual Supplement, dated April 15, 1986, is a part of this STC.

1. You cannot use descriptive data about this design change to duplicate other products. This approval is limited to only the installation made in Boeing Model B727 Serial No. 20165. This STC does not permit manufacturing of parts for multiple installations.

Michele J. Maurer Acting Manager New York Aircraft Certification Office Boeing B727 June 1, 1989, July 5, 2016, August 25, 2016 April 2, 1987 June 19, 1987, September 17, 1987, December 15, 1987 July 8, 1982 April 15, 1986 A3WE 2

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

2 SA1926SO

## Every issue (1)

- August 25, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e0/8c/e08c69b685c106413e18dba5b76667d13c6dda69d0543356813724a2a335bcb7)

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