# STC SA09636AC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC 01304 Digital Flight Control System (DFCS), Three Axis Automatic Flight Guidance System Part No. 01304-04-01-007, in accordance with Master Data List 921231, Revision 5, dated 9-14-2004, or later FAA approved revision for Cessna 425.  FAA approved Airplane Flight Manual Supplement No. 892135, dated 9-20-2004, or later FAA approved revision is required for Cessna 425 with S-TEC 01304 DFCS.
- Applied: September 4, 2003
- Status date: September 20, 2004
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 3, Part 21, Part 23
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/cc/43/cc43b0e55e82eb0823a3e613f2826ee630e5e4dcd83a7a7ed70ca8bd3ee758c8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6A3BAF17328DD5F886256F26004D2D9D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09636AC

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 425 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

## 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.

Number SA09636AC This Certificate issued to S-TEC Corporation One S-TEC Way Mineral Wells Airport Mineral Wells, TX 76067-9236

Part 3 of the Civil Air Regulations and Part 23 of the Federal Aviation Regulations.(see FAA letter dated 9/20/2004)

A7CE Original Product Type Certificate Number :

Make : Cessna 425

Description of Type Design Change: Installation of S-TEC 01304 Digital Flight Control System (DFCS), Three Axis Automatic Flight Guidance System Part No. 01304-04-01-007, in accordance with Master Data List 921231, Revision 5, dated 9-14-2004, or later FAA approved revision for Cessna 425. FAA approved Airplane Flight Manual Supplement No. 892135, dated 9-20-2004, or later FAA approved revision is required for Cessna 425 with S-TEC 01304 DFCS.

Limitations and Conditions: Installation of STC SA09637 for Magic Electronic Flight Instrument System (EFIS) is required for this installation. Compatibility of this design change with previously approved modifications must be determined by the installer. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

Date of application : September 04, 2003

Date of issuance : September 20, 2004 Date reissued :

( Signature) Michele M. Owsley Manager, Airplane Certification Office, Southwest Region

(Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

## Every issue (1)

- September 20, 2004: Issued, Current. [certificate](https://openairdocs.org/files/sha256/cc/43/cc43b0e55e82eb0823a3e613f2826ee630e5e4dcd83a7a7ed70ca8bd3ee758c8)

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