# STC SA2826WE-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: United Airlines Inc, United States
- Description: Installation of provisions for Ground Proximity Warning System in accordance with Drawing List for United Air Lines Change Order Authorization (COA) No. 7-2470, or later FAA approved revisions.
- Applied: February 14, 1975
- Status date: November 30, 2011
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/e7/e0/e7e04cfea10297f5594a793e14bbb7c11c32f361ea68049513a73c7a2662142b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/16637979B659832D8625799600741047.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2826WE-D

## ADs that name it (0)

None.

## Approved models (3)

- The Boeing Company 727 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727C Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## 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.

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002

Part 4b of the Civil Air Regulations.

A3WE

Boeing

727-22, -22C, and -222 Description of Type Design Change: Installation of provisions for Ground Proximity Warning System in accordance with Drawing List for United Air Lines Change Order Authorization (COA) No. 7-2470, or later FAA approved revisions.

Limitations and Conditions: The Ground Proximity Warning System shall be deactivated. 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.

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: February 14, 1975

Date of issuance: February 21, 1975

Date reissued: November 30, 2011

Date amended: April 3, 1975

( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title)

NOTE:

**DO NOT DELETE THIS PAGE.**

**DO NOT ADD ANY DATA TO THIS PAGE.**

**THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.**

## Every issue (1)

- November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e7/e0/e7e04cfea10297f5594a793e14bbb7c11c32f361ea68049513a73c7a2662142b)

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