# STC ST09711AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: United Airlines Inc, United States
- Description: 757-300 Reconfiguration 24/192 to 24/189
- Applied: March 1, 2012
- Status date: May 17, 2012
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM)
- Certificate PDF: https://openairdocs.org/files/sha256/17/f5/17f5db22d1cdf4a2e843e45ba6ad82ea2713de1030721b245e82b71d28632151
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AF347B65193F151A86257A06006AEDC8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09711AC-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 757-300 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.

Part 25 of the Federal Aviation Regulations.

A2NM The Boeing Company 757-300 Series

Description of Type Design Change: 757-300 Reconfiguration 24/192 to 24/189 in accordance with United Airlines Master Drawing List 2500DA12482, Rev IR, dated May 10, 2012 or later FAA approved Revision.

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

United Airlines, Inc.

600 Jefferson St.

13th Floor Houston, TX 77002 Date of application: March 1, 2012

Date of issuance: May 17, 2012

( Signature) John Wiitala ODA Administrator United Airlines Organization Delegation Authorization

( Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

R:\DAS\STC\Test.doc

## Every issue (1)

- May 17, 2012: Issued, Current. [certificate](https://openairdocs.org/files/sha256/17/f5/17f5db22d1cdf4a2e843e45ba6ad82ea2713de1030721b245e82b71d28632151)

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