# STC SA09527AC-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: S-TEC Corporation, United States - Description: Installation of DFCS 01284 (MAGIC 2100) Autopilot System, Model ST-902. - Applied: July 3, 2002 - Status date: January 9, 2008 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 3, Part 21, Part 23 - Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4) - Certificate PDF: https://openairdocs.org/files/sha256/7d/7c/7d7cbb5cf464175471d2997594be71edcc8197fe98c469bdbb5e16b1ce6b1355 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2BE2504701109F19862573DA005BEB80.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA09527AC-D ## ADs that name it (0) None. ## Approved models (3) - Twin Commander Aircraft Corporation 690 ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690A ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) - Twin Commander Aircraft Corporation 690B ([TCDS 2A4](https://openairdocs.org/tcds/2A4)) ## 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 SA09527AC-D This Certificate issued to S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Part 3 of the Civil Air Regulations and FAR Part 23 (For Certification Basis see Continuation Sheet 4 of 4) Original Product Type Certificate Number : 2A4 Make : Twin Commander Aircraft Company Model : 690, 690A, and 690B Description of Type Design Change: Installation of S-TEC Digital Flight Control System (autopilot) Part Numbers 01284 or 01298-01-01-002 or 01304-04-01-008, (MAGIC 2100) in accordance with Master Data List No. 921219, Revision C, dated 1-09-08 or later FAA Approved revisions of the above data. 1. FAA/DAS approved Airplane Flight Manual Suppl ement, P/N 892123, Revision 4, dated 1-09-08, is required for Twin Commander Models 690, 690A , and 690B for (DFCS) 01304-04-01-008 Autopilot System or later FAA Approved revisions of the above supplement. Date of application : July 03, 2002 Date of issuance : July 12, 2002 Date reissued : January 09, 2008 Date amended : 8/20/02; 10/2/03; 12/22/04 By direction of the Administrator (Signature) James W. Smisek DAS-100.2 DAS administrator, DAS700096SW (Title) FAA Form 8110-2-1(10-69) Page 2 of 4 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): Number SA09527AC-D FAA Form 8110-2-1(10-69) Page 3 of 4 Date Re-Issued 1-09-08 2. Also eligible on the above models when modified by any of the following STCs: STC SA236CH (Garrett TPE 331-10T-515K engines), STC SA3861NM (“Q” tip propellers), and STC SA1359GL (winglets) and used with Airplane Flight Manual Supplement, P/N 892123, as applicable or later FAA Approved revisions. Limitations and Conditions (con’t.) 1. Compatibility of this modification with other previously approved modifications must be determined by the installer. 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. FAA Form 8110-2-1(10-69) Page 4 of 4 Number SA09527AC-D Date Re-Issued 1-09-08 Certification Basis : The certification basis is 14 CFR Part 23, effective February 01, 1965, Including Amendments 23-1 through 23.55 FAR 23.301 Amdt 23-48, Eff. 3/11/96 FAR 23.303, Eff. 2/1/65 FAR 23.305 Amdt. 23-45 Eff. 9/7/93 FAR 23.307 Eff. 2/1/65 FAR 23.365, Eff. 2/1/65 FAR 23.395 Amdt. 23-7, Eff. 9/4/69 FAR 23.561 Amdt. 23-48, Eff. 3/11/96 FAR 23.571 Amdt. 23-48, Eff. 3/11/96 FAR 23.601 Eff 2/1/65 FAR 23.603 Amdt. 23-23, Eff. 12/1/78 FAR 23.605 Amdt. 23-23, Eff. 12/1/78 FAR 23.607 Amdt. 23-48, Eff. 3/11/96 FAR 23.609 Amdt. 0, Eff. 2/1/65 FAR 23.611 Amdt. 23-48, Eff. 3/11/96 FAR 23.613 Amdt. 23-45, Eff. 9/7/93 FAR 23.619 Amdt. 23-7, Eff. 9/14/69 FAR 23.623 Amdt. 23-7, Eff. 9/14/69 FAR 23.625 Amdt. 23-7, Eff. 9/14/69 FAR 23.627 Amdt. 0, Eff 2/1/65 FAR 23.671 Eff. 2/1/65 FAR 23.672 Amdt. 45, Eff. 9/7/93 FAR 23.677 Amdt. 23-49, Eff. 3/11/96 FAR 23.685 Amdt. 23-17, Eff. 2/1/77 FAR 23.689, Amdt. 23-7, Eff. 9/14/69 FAR 23.693 Amdt. Eff. 2/1/65 FAR 23.777, Amdt. 23-51, Eff. 3/11/96 FAR 23.867, Amdt. 23-49, Eff. 3/11/96 FAR 23.1301, Amdt. 23-20, Eff. 9/1/77 FAR 23.1309, Amdt. 23-49, Eff. 3/11/96 FAR 23.1321, Amdt. 23-49, Eff. 3/11/96 FAR 23.1322, Amdt. 23-43, Eff. 5/10/93 FAR 23.1325, Amdt. 23-50, Eff. 3/11/96 FAR 23.1329, Amdt. 23-49, Eff. 3/11/96 FAR 23.1331, Amdt. 23-43, Eff. 05/10/93 FAR 23.1335, Amdt. 23-20, Eff. 9/1/77 FAR 23.1351, Amdt. 23-49, Eff. 3/11/96 FAR 23.1353, Amdt. 23-49, Eff. 03/11/96 FAR 23.1357, Amdt. 23-43, Eff. 5/10/93 FAR 23.1359, Amdt. 23-49, Eff. 3/11/96 FAR 23.1361, Amdt. 23-49, Eff. 3/11/96 FAR 23.1365, Amdt. 23-49, Eff. 3/11/96 FAR 23.1367 Amdt. 0, Eff. 2/1/65 FAR 23.1381 Amdt. 0, Eff. 2/1/65 FAR 23.1419, Amdt. 23-43, Eff. 5/3/93 FAR 23.1431, Amdt. 23-49, Eff. 3/11/96 FAR 23.1501, Amdt. 21, Eff. 3/1/78 FAR 23.1529, Amdt. 21-26, Eff. 10/14/80 FAR 23.1541, Amdt. 23-21, Eff. 3/11/78 FAR 23.1581, Amdt. 23-50, Eff. 3/11/96 FAR 23.1583, Amdt. 23-50, Eff. 3/11/96 FAR 23.1585, Amdt. 23-50, Eff. 3/11/96 ---------------------------------------------------------------- END----------------------------------------------------------- ----- ## Every issue (1) - January 9, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/7d/7c/7d7cbb5cf464175471d2997594be71edcc8197fe98c469bdbb5e16b1ce6b1355) --- 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.