# STC SA2561SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Southeast Aero-Tek Inc, United States
- Description: Modify the auxiliary fuel tanks
- Applied: October 21, 1988
- Status date: June 27, 2014
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/84/8c/848c39898c82a91cf454bf48bd483f8efa23b94504bb2a60fca99e2435e6f3d5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A79EEE92DB71BDA186257F47005CC5E5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2561SO

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Possession of this Su pplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor t o alter an aircraft, aircraft engine, or propeller. The STC’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the ST C holder.

FAA Form 8110-2 (5/14) Page 1 of 2

Number: SA2561SO

This certificate issued to: Southeast Aero-Tek Inc.

143A East Main Street Smithtown, NY 11787

Part 4b of the Civil Air Regulations.

Original Product – Type Certificate Number: Make: Boeing A3WE Model: 727-100, -200

1. For B727-100 aircraft incorporating STC SA62NE: Modify the auxiliary fuel tanks to use cabin pressure as a backup transfer and provide a pressure relief in the transfer system in accordance with MDL 727-221, Revision D, dated: July 12, 1989, or later FAA approved revision.

2. For B7272-100/-200 aircraft incorporating STC ST01623AT or SA1474SO: Modify the auxiliary fuel tanks to use cabin pressure as a backup transfer and provide a pressure relief in the transfer system in accordance with the installation procedures found in Report SAR221, Rev J, dated : November 17, 2003, and Master Drawing List, MDL 727-221, Revision G dated: November 17, 2013 or later FAA approved revision.

Airplane Flight Manual Supplement is not part of this STC. Instructions for Continued Airworthiness, SAT OM-1, Rev. A, dated: 10/13/03 or SAT, INC. OM-2, Rev. Orig., dated: 10/16/03, as applicable, or later FAA approved revision, are part of this STC. “This approval is limited only to those aircraft models previously modified by the identified Supplemental Type Certificates and should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will produce no adverse effect upon the airworthiness of that aircraft”.

Date of Application: October 21, 1988 Date Reissued: June 12, 1991; June 27, 2014 Date of Issuance: May 17, 1989 Date Amended: April 20, 1993; December 08, 2003

Signature

Title Melvin D. Taylor Manager Atlanta Certification Office

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21. 47.

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

Transfer the ownership of Supplemental Type Certificate Number: SA2561SO

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (1)

- June 27, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/84/8c/848c39898c82a91cf454bf48bd483f8efa23b94504bb2a60fca99e2435e6f3d5)

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