# STC SA3139NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: American Airlines Inc, United States
- Description: Installation of Teledyne Flight Data Acquisition unit and Lockheed Digital Flight Data Recorder.
- Applied: October 24, 1985
- Status date: December 18, 2015
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/51/74/5174ac66a19fea8ab79e5318269c5362662d4afd01a63af8a19495d4cd9951dc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/202F4CBFBDE4350E86257FF10063E98B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3139NM

## ADs that name it (0)

None.

## Approved models (9)

- The Boeing Company DC-9-31 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32 (VC-9C) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32F (C-9A) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-32F (C-9B) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-33F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-34 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- The Boeing Company DC-9-34F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## 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 SA3139NM American Airlines, Inc.

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

4b

1. Installation of Teledyne Flight Data Acquisition unit and Lockheed Digital Flight Data Recorder in accordance with FAA-approved Pacific Southwest Airlines Master Drawing 70-0172, Revision "B", or later FAA-approved revisions.

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Gaetano Sciortino Manager New York Aircraft Certification Office The Boeing Company DC-9-30 Series April 05, 1988, December 18, 2015 October 24, 1985 February 25, 1986 A6WE 2

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

To (Name and address of transferee)

From (Name and address of grantor)

2 SA3139NM

## Every issue (1)

- December 18, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/51/74/5174ac66a19fea8ab79e5318269c5362662d4afd01a63af8a19495d4cd9951dc)

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