# STC SA8403SW-D - Type: Supplemental type certificate - Status: Current, Amended - Holder: S-TEC Corporation, United States - Description: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-549 - Applied: July 28, 1994 - Status date: April 10, 2001 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 3A16](https://openairdocs.org/tcds/3A16) - Certificate PDF: https://openairdocs.org/files/sha256/49/3a/493aeb86b5a8d16b8230f410816aa7458fee8f02cf889e3b53385dbcc42cc440 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C8E171AE3DFB9F6585256CC20058E793.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA8403SW-D ## ADs that name it (0) None. ## Approved models (13) - Beechcraft Corporation 56TC ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-A55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-B55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-B55A ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-B55B ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-C55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation 95-C55A ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation A56TC ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation D55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation D55A ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation E55 ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) - Beechcraft Corporation E55A ([TCDS 3A16](https://openairdocs.org/tcds/3A16)) ## 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. •Hnttcb j»tatcB ®f America pEparteumi nf ®ranspnrtattnn - Jifchcral J\inattntt .Ahmmtslraitrm uppletttental Certificate SA8403SW-D S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 f/ S/tr //ir /M/*f df'Jfffj/ /at MifcA //fr atiamt/ddmu ,.//,«/<-/.- y/' //tr ^MM/ff/fojiJ f//m reu j/ .V &/'///(' Wfiv/' 3A16 Beech 95-55, 95-A55, 95-B55, 95-B55A, 95-B55B, 95-C55, 95-C55A, D55, D55A, E55, E55A, 56TC and A56TC Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-549, according to Bulletin No. 649, Revision 2, dated 4-10-01 and Master Drawing List No. 92701, Revision B, dated 4-10-01 or later FAA Approved revisions of the above data (28 Volt System). (See Continuation Sheet, Page 2, a part of this STC.) 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. tt/mfr/ttmr ^rs f/t//// (/er/f f .• 7-28-94 8-03-94 «„,«,„/,«/.• 2-24-99, 4-10-01 (Signature) Michael Keirnan DAS Staff Coordinator. DAS 5 SW (Title) FAA Form 6110-2(10-68) Page 1 o£ 2 •Hnitcb plates ©f (America Department nf transportation - JTchcral JVntatton J\.hmtntstratton uppletttental tEgpe (Herttftcate - SA8403SW-D Limitations and Conditions (con't.) 1 . Model 95-B55B eligibility limited to airplanes When Modified Per Beech Drawing 96-002000. 2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891089. dated 8-03-94 for Beech Models 95-55, 95-A55, 95-B55, and 95-B55A and 95-B55B When Modified Per Beech Drawing 96-002000 is required or later FAA Approved revisions of the above supplement. 3. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891090. dated 8-03-94 for Beech Models 95-C55, 95-C55A, D55, D55A, E55, and E55A is required or later FAA Approved revisions of the above supplement. 4. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891831, dated 2-24-99 for Beech Models 56TC and A56TC is required or later FAA Approved revisions of the above supplement. 5. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891089, Revision 1, dated 4-10-01 is required for Beech models 95-55, 95-A55, 95-B55, and 95-B55A and 95-B55B when modified per Beech Drawing 96-002000 for S-TEC System 55/55X or later FAA Approved revisions of the above supplement. 6. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891090, Revision 1, dated 4-10-01 is required for Beech models 95-C55, 95-C55A, D55, D55A, E55, and E55A for S-TEC System 55/55X or later FAA Approved revisions of the above supplement. 7 FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891831, Revision 1, dated 4-10-01 is required for Beech models 56TC and A56TC for S-TEC System 55/55X or later FAA Approved revisions of the above supplement. 8. Compatibility of this modification with other previously approved modifications must be determined by the installer. FAA Form 8110-2-1(10-69) Page 2 of 2 This certificate may be transferred in accordance with FAR 2.1.47. TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Z}P cade) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and £IP code) Extent of Authority (if licensing agreement): Signature of grantor (In ink):. U.S. GOVERNMENT PRINTING OFFICE : 1966 OF—205-579 ## Every issue (1) - April 10, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/49/3a/493aeb86b5a8d16b8230f410816aa7458fee8f02cf889e3b53385dbcc42cc440) --- 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.