# STC SA2550SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: American Airlines Inc, United States
- Description: Installation of mixed seating.
- Applied: February 22, 1989
- Status date: December 18, 2015
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A49EU](https://openairdocs.org/tcds/A49EU)
- Certificate PDF: https://openairdocs.org/files/sha256/65/be/65bef3a71edebe7d5ea8a9025aedaa023790cadfb627fb1a8e9afa1fbfcbce78
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50A213D7B520E86E86257F64006BA0A3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2550SO

## ADs that name it (0)

None.

## Approved models (6)

- BAE Systems (Operations) Limited Avro 146-RJ100A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited Avro 146-RJ70A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited Avro 146-RJ85A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited BAe 146-100A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited BAe 146-200A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))
- BAE Systems (Operations) Limited BAe 146-300A ([TCDS A49EU](https://openairdocs.org/tcds/A49EU))

## 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 SA2550SO American Airlines, Inc.

3900 N. Mingo Road Engineering Dept., MD 208 Tulsa, Oklahoma 74116 Federal Aviation Regulations.

1. Installation of mixed seating in accordance with USAir E.O.'s 2989K078, dated April 6, 1989; 2589K079, dated April 27, 1989;

2589K081, dated March 3, 1989; and 2589K083, dated April 26, 1989; 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 BAE SYSTEMS (Operations) Limited BAE 146 September 05, 1990, December 18, 2015 February 22, 1989 May 04, 1989 A49EU 2

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

To (Name and address of transferee)

From (Name and address of grantor)

2 SA2550SO

## Every issue (1)

- December 18, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/65/be/65bef3a71edebe7d5ea8a9025aedaa023790cadfb627fb1a8e9afa1fbfcbce78)

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