# STC SA00521AT-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: FFC Manufacturing, United States
- Description: Installation of replacement fuel cell assemblies
- Applied: January 19, 1995
- Status date: April 16, 2009
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/de/cd/decdb7792bc5fd08587b7ef19dbe50840593c3d63802dcab90c2086a550dd053
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/21D03F42610F63A1862575AD007A73E4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00521AT-D

## ADs that name it (0)

None.

## Approved models (4)

- Hawker Beechcraft Corporation 35-33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Hawker Beechcraft Corporation 35-A33 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Hawker Beechcraft Corporation K35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Hawker Beechcraft Corporation M35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

## 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 * of the Regulations.

Description of Type Design Change: Installation of replacement fuel cell assemblies in accordance with FFC Drawings B3522-7 (-8)-1 and B3522-7 (-8)-2 dated January 11, 1995; or later FAA approved revisions.

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.

(See continuation 3 of 3)

FFC Manufacturing 4010 Pilot Dr., Suite 103 Memphis, TN 38118 3A15 Make: Beech Model: (See Continuation 3 of 3) Date reissued: April 16, 2009

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

( Title)

Date of application: January 19, 1995

Date of issuance: February 16, 1995

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

Number SA00521AT-D

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

Number SA00521AT-D

Model Continuation:

Beech Debonair and Bonanza 35 Series Aircraft

This approval should not be extended to airplanes of the Beech K35, M35, 35-33 AND 35-A33 series which were not originally configured for the 10 gallon auxiliary tanks.

Limitations and Conditions – Continued:

FFC part numbers 3522-7 and 3522-8 will be replacements for Beech part numbers 35-921222-5(-

7) and 35-921222-6(-8) respectively.

END

## Every issue (1)

- April 16, 2009: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/de/cd/decdb7792bc5fd08587b7ef19dbe50840593c3d63802dcab90c2086a550dd053)

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