# STC SA5149NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aviation Technical Services, United States
- Description: Interior arrangement that includes rearrangement of passenger seats, existing emergency equipment and passenger service units.
- Applied: February 27, 1991
- 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/sha256/75/2d/752d0c8a3268f79482dd8ab4526d090cc9b6db7c44da3806a4fd13771bdf05ee
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7CB141AC8AEF564386258335004C0852.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5149NM

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 737-300 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 SA5149NM

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

Part 25 of the Federal Aviation Regulations. (See Type Certification Data Sheet A16WE for complete certification basis)

Original ProductType Certificate Number: A16WE Make: Boeing Model: 737-300 Series

Description of the Type Design Change: Interior arrangement that includes rearrangement of passenger seats, existing emergency equipment and passenger service units in accordance with Tramco, Inc. Master Drawing List 91-030, Revision A, dated April 9, 1991, or later FAA-approved revisions.

Limitations and Conditions: Approval of this change in type design applies basically 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 that the interrelationship be tween this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and Tramco, Inc. Master Drawing List 91-030 must be maintained as part of the permanent records for the modified aircraft.

Date of application: February 27, 1991 Date reissued: October 24, 2018 Date of issuance: April 29, 1991 Date amended:

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/sha256/75/2d/752d0c8a3268f79482dd8ab4526d090cc9b6db7c44da3806a4fd13771bdf05ee)
- April 29, 1991: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/ae/b2/aeb236d3c58a73f7c5f4991f0d0b1d755cd2489fa70fc3279970b77f341d6728)

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