# STC SA3964SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Airlines Inc, United States
- Description: Installation of TCAS provisions.
- 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/sha256/31/20/3120c5f3340631e34b20f493078ac672610f16f7853229129101e7d814981632
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2DB39AD4BE59B24685256CC2000C5C11.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3964SW-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

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Ariad Same of 8acia Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA3964SW-D This certificate issued to: American Airlines P.O. BOX 582809 MD208 Tulsa, Oklahoma 74158-2809 Port 25 of the Federal Aviation Regulations Original Product - Typo bortificato Number:

Make: A2NM Model: _ BOEING Description of Type Design Change: 757-200 Installation of TCAS provisions per ECO FOO02XX, dated 5-31-90, and one Prototype Form 7721/F2 dated 6-15-90 and Installation & Activation of TCAS per ECO F0035XX dated 5-30-90 and one Prototype Form 7721/F2 dated 6-15-90 and TCAS Display Structural Support Assembly Installation per ECO F0059XX dated 5-30-90 ,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.

The Bendix/King CAS-81 TCAS requires FAA approved American Airlines Inc. AFM AAL Supplement 1 (D63IN005.223) dated 6-4-90 and approved 6-16-90.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT 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 streel) (City, State, and ZIP code ) Extent of Authority (if licensing agreement):

Date of Transfer: - Signature of grantor (In ink): _

## Every issue (1)

- June 16, 1990: Issued, Current. [certificate](https://openairdocs.org/files/sha256/31/20/3120c5f3340631e34b20f493078ac672610f16f7853229129101e7d814981632)

---
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.