# STC SA4569SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Structural installation of supplemental water tanks.
- Applied: October 7, 1981
- Status date: December 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/8a/dc/8adca60efdd08ecabfdab33b5f8962eccaf3d331f8f865a11c573ac6ae46c514
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D920501B40293EB985256CC2000E3D3C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4569SW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727-100 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.

es 0f Wransp0rtatt0n - Jlfeheral jXfrtatum ^mtntstratmn Certificate SA4569SW Sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 Boeing 727-100 4b o0& Civil Air Structural installation of supplemental water tanks according to Drawing List No. 52 dated 5/17/82, or later FAA approved revision.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

.-October 07, 1981 December 15, 1981 '.• December 1, 1999 September 10, 1982 Revision 1 (Signature) Michele M. Owsley, Manager Airplane Certification Office, Southwest Region (Title)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZJP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and <7f code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8a/dc/8adca60efdd08ecabfdab33b5f8962eccaf3d331f8f865a11c573ac6ae46c514)

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