# STC SA00798AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: FFC Manufacturing, United States
- Description: Installation of left hand and right hand auxiliary tanks fuel cell assemblies.
- Applied: February 8, 1995
- Status date: April 29, 2009
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A8EA](https://openairdocs.org/tcds/A8EA)
- Certificate PDF: https://openairdocs.org/files/sha256/11/69/11695eb5a5a3c1763d357f346fe01a58cd00be76575243d7f0e44433e2a534df
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C54871C768391138862575B5006DEB9B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00798AT

## ADs that name it (0)

None.

## Approved models (3)

- Piper Aircraft Inc. PA-31T ([TCDS A8EA](https://openairdocs.org/tcds/A8EA))
- Piper Aircraft Inc. PA-31T1 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA))
- Piper Aircraft Inc. PA-31T2 ([TCDS A8EA](https://openairdocs.org/tcds/A8EA))

## 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

Part 23 of the Federal Aviation Regulations.

Description of Type Design Change: Installation of left hand and right hand auxiliary tanks fuel cell assemblies in accordance with A/C Fuel Cells Worldwide, Inc., “Installation Instructions”, dated August 30, 1994; and A/C Fuel Cells Worldwide, Inc., Drawings P4614, Rev. C, dated June 7, 1995; and Drawing P4615, Rev. C, dated May 26, 1995; or later FAA approved revision.

Limitations and Conditions: This approval should not be extended to other aircraft of these models 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 introduce no adverse effects upon the airworthiness of the aircraft. 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.

FFC Manufacturing 4010 Pilot Dr., Suite 103 Memphis, TN 38118 A8EA Make: Piper Aircraft Corporation Model: PA-31T, -31T1, -31T2 Date reissued: July 29, 2002; April 29, 2009

( Signature) Melvin D. Taylor Manager Atlanta Aircraft Certification Office

( Title)

Date of application: February 08, 1995

Date of issuance: June 29, 1995

FAA FORM 8110-2-1(10-69) PAGE 2 of 3 PAGES

Number SA00798AT

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES

Number SA00798AT

## Every issue (1)

- April 29, 2009: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/11/69/11695eb5a5a3c1763d357f346fe01a58cd00be76575243d7f0e44433e2a534df)

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