# STC SA09546AC-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: S-TEC Corporation, United States - Description: Installation of S-TEC 01304 Digital Flight Control System (DFCS), - Applied: July 24, 2007 - Status date: December 3, 2007 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A28CE](https://openairdocs.org/tcds/A28CE) - Certificate PDF: https://openairdocs.org/files/sha256/e3/7f/e37f21fd1d041bd38f94704d31e341aa0586ccc46986400e10bf5216b9da7b86 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3DC2E04B07D07A10862574D5007D891A.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA09546AC-D ## ADs that name it (0) None. ## Approved models (1) - Cessna Aircraft Company 441 ([TCDS A28CE](https://openairdocs.org/tcds/A28CE)) ## 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 SA09546AC-D This Certificate issued to S-TEC Corporation One S-TEC Way Municipal Airport Mineral Wells, TX 76067-9236 Part 23 of the Federal Aviation Regulations. Original Product Type Certificate Number : A28CE Make : Cessna Aircraft Company Model : 441 1. Installation of S-TEC 01304 Digital Flight Control Syst em (DFCS), in according with Master Data List ST-928-L-0001, Revision -, dated 11-16-07 or later FAA Approved revisions of the above data. 2. FAA/DAS approved airplane Flight Manual Suppl ement No. ST-928-M-0001, dated 11-27-07, or later FAA approved revision is required. 1. Compatibility of this modification with other previously approved modifications must be determined by the installer. Date of application : July 24, 2007 Date of issuance : November 27, 2007 Date reissued : December 3, 2007 Date amended : (Signature) James W. Smisek DAS 100.2 DAS Administrator, DAS700096SW (Title) FAA Form 8110-2-1(10-69) Page 2 of 3 Number SA09546AC-D Date Re-Issued December 3, 2007 Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ZIP code) Signature of grantor (In ink): FAA Form 8110-2-1(10-69) Page 3 of 3 Number SA09546AC-D Date Re-Issued December 3, 2007 Limitations and Conditions (con’t.) 2. If the holder agrees to permit another person to u se this certificate to alter the product, the holder shall give the other person written evidence of that permission. Certification Basis: Compliance determination used for this STC 14CFR 23.143 Amdt 23-50 14CFR 23.867 Amdt 23-49 14CFR 23.301 Amdt 23-48 14CFR 23.1301 Amdt 23-20 14CFR 23.303 Amdt - 14CFR 23.1309 Amdt 23-49 14CFR 23.305 Amdt 23-45 14CFR 23.1321 Amdt 23-49 14CFR 23.307 Amdt - 14CFR 23.1322 Amdt 23-43 14CFR 23.395 Amdt 23-7 14CFR 23.1325 Amdt 23-50 14CFR 23.397 Amdt 23-45 14CFR 23.1329 Amdt 23-49 14CFR 23.561 Amdt 23-48 14CFR 23.1335 Amdt 23-20 14CFR 23.571 Amdt 23-48 14CFR 23.1351 Amdt 23-49 14CFR 23.575 Amdt 23-48 14CFR 23.1357 Amdt 23-43 14CFR 23.601 Amdt - 14CFR 23.1359 Amdt 23-49 14CFR 23.603 Amdt 23-23 14CFR 23.1365 Amdt 23-49 14CFR 23.605 Amdt 23-23 14CFR 23.1367 Amdt - 14CFR 23.607 Amdt 23-48 14CFR 23.1381 Amdt 23-49 14CFR 23.609 Amdt - 14CFR 23.1419 Amdt 23-43 14CFR 23.611 Amdt 23-48 14CFR 23.1431 Amdt 23-49 14CFR 23.613 Amdt 23-45 14CFR 23.1501 Amdt 23-21 14CFR 23.619 Amdt 23-7 14CFR 23.1525 Amdt 23-45 14CFR 23.625 Amdt 23-7 14CFR 23.1527 Amdt 23-45 14CFR 23.627 Amdt - 14CFR 23.1529 Amdt 23-26 14CFR 23.671 Amdt - 14CFR 23.1541 Amdt 23-21 14CFR 23.672 Amdt 23-45 14CFR 23.1555 Amdt 23-50 14CFR 23.677 Amdt 23-49 14CFR 23.1581 Amdt 23-50 14CFR 23.685 Amdt 23-17 14CFR 23.1583 Amdt 23-50 14CFR 23.689 Amdt 23-7 14CFR 23.1585 Amdt 23-50 14CFR 23.693 Amdt - 14CFR 34 Amdt 34-3 14CFR 23.771 Amdt 23-14 14CFR 36 Amdt 36-25 14CFR 23.777 Amdt 23-51 Cessna Special Cond 23-74-CE-9 ---------------------------------------------------------------- END----------------------------------------------------------- ----- ## Every issue (2) - December 3, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e3/7f/e37f21fd1d041bd38f94704d31e341aa0586ccc46986400e10bf5216b9da7b86) - November 27, 2007: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/e3/7f/e37f21fd1d041bd38f94704d31e341aa0586ccc46986400e10bf5216b9da7b86) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.