# STC SA3965SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Airlines Inc, United States
- Description: Upgrade of dual mode S transponder system.
- Applied: March 9, 1990
- Status date: June 16, 1990
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM)
- Certificate PDF: https://openairdocs.org/files/sha256/cc/9f/cc9fb30e9b255160170668611cf0425f3e8615d5f425c78f30955f9541634c9e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/904CD299EC6216D085256CC2000C5C13.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3965SW-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 757-200 Series ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))

## 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.

United $tatts of amenta Bepartment of i:ranBport3tion—federal atnation administration Supplemental "Cgpe Certificate t*Sl£&46&a£0'nA/.

SA3965SW-D American Airlines P.O. BOX 582809 M0208 Tulsa, Oklahoma 74158-2809 t'^4*^^^xa!iil<jp^^^..<i^^&£i>w>«>^^^<<*a!i^^ 2 5 Federal Aviation **^ 757-200 Upgrade of Dual Mode S Transponder System per ECO F0041XX, dated 4-21-90, and one Prototype Form 7721/F2 dated 6-15-90, or later DAS1SW approved revision.

This approval should not be incorporated in any aircraft of this specific model until compatibility of this modification with other previously approved modifications has been determined by the installer.

d-u, 4A& . We/rru'-rnA Jvo/t-r March 9, 1990 June 16, 1990 ^ate atrifrudc*/.

• slu* 4* &w '^'ih

a. - (Signature) DAS1SW Coordinator (Title)

**FAAFOIM81 10-2(10-68)**

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and <YP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and <7P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- June 16, 1990: Issued, Current. [certificate](https://openairdocs.org/files/sha256/cc/9f/cc9fb30e9b255160170668611cf0425f3e8615d5f425c78f30955f9541634c9e)

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