# STC SA3974SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: American Airlines Inc, United States
- Description: Install new passenger seats at the Type III overwing emergency exits, for increased access
- Applied: November 2, 1992
- Status date: May 10, 1993
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM)
- Certificate PDF: https://openairdocs.org/files/sha256/f0/49/f0499bfc7a2d8f63292639582ce83d87a65c350cd547694614af9e7545da26ee
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/21B94341D71EFB1485256CC2000C5C2B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3974SW-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.

ttmttd 3tatts of amrrica Btpartmcnt of transportation— jpederal dotation Administration Supplemental l^pe Certificate SIC SA3974SW-D American Airlines, Inc.

P. O. Box 582809 MD 208 Tulsa, Oklahoma 74158-2809

•-^£>^J^^a4l2^/^<^/&&«»«i^^4««£^^ y*»J 25 ^/JA# Federal Aviation A2TM Boeing 757-223 install new passenger seats at the Type III overwing emergency exits, for increased access, per EGO F0254XX dated 4/25/93 and Prototype Revision Form 7721-3 dated 5/10/93 or later DftSlSW approved revision.

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

11/2/92 1/12/93 ,t — £</ 5/10/93 Amend. 1 £E. J. GfciWe (Signature) DAS1SW Coordinator(Title)

FAA fotM »110-2 (10-68)

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

Signature of grantor (In ink):

## Every issue (1)

- May 10, 1993: Amended, Current. [certificate](https://openairdocs.org/files/sha256/f0/49/f0499bfc7a2d8f63292639582ce83d87a65c350cd547694614af9e7545da26ee)

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