# STC SA975SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Culbertson Aviation, United States
- Description: Installation of two 15-gallon auxiliary fuel tanks, one in each wing
- Applied: July 13, 1977
- Status date: April 15, 2013
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21, Part 23
- Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO)
- Certificate PDF: https://openairdocs.org/files/sha256/ca/cf/cacfe59aa3c31c317087fdf399352f06dd64074e8722f44c508045640e5a95f8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3D9260CE383A76F86257B4F0058C1EB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA975SO

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-32R-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))

## 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 3 of the Civil Air Regulations through Amendment 3-8, FAR’s 23.221 and 23.959, Amendment 23-5, and FAR 23.967(e)(2) of Amendment 23-14.

Description of Type Design Change: Installation of two 15-gallon auxiliary fuel tanks, one in each wing, in accordance with Cypress Aviation Drawing No. 10001, Sheets 1 and 2 through Engineering Orders No. 1 dated March 18, 1978, No. 2 dated March 21, 1978, and No. 3 dated March 29, 1978. Pilot Operating Handbook Supplements for PA-32R-300 dated March 30, 1978, is required.

Limitations and Conditions: This approval 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 other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written ev idence of that permission.

Culbertson Aviation 827 Hollywood Way #285 Burbank, CA 91505 A3SO Make : Piper Model : PA-32R-300 Date of application: July 13, 1977

Date of issuance: April 05, 1978

Date reissued : June 21, 1982; August 11, 1983; June 27, 2003;

June 18, 2004; April 15, 2013

( Signature)

Melvin D. Taylor, Manager Atlanta Aircraft Certification Office

( Title)

## Every issue (1)

- April 15, 2013: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ca/cf/cacfe59aa3c31c317087fdf399352f06dd64074e8722f44c508045640e5a95f8)

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