# STC SA09017AC-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-596. - Applied: August 18, 1995 - Status date: February 2, 2001 - Product: Aircraft, Single-Engine - Certification basis: Part 21 - Data sheets: [TCDS 5A6](https://openairdocs.org/tcds/5A6) - Certificate PDF: https://openairdocs.org/files/sha256/a3/be/a3bec04cd762cd7022be6d4f9c3f6a21e51c396270ba8fad6c66bd3088b47ff5 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2E3C1D689F2A524885256CC1007F39A5.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA09017AC-D ## ADs that name it (0) None. ## Approved models (1) - Cessna Aircraft Company 180K ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09017AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Certifies that the change in the type design fos the following product with the limitations and conditions therefor as specifed hereon meets the aincothiness requirments of Furt 3 of the Civil di Requlutions. Criginal I reduet Type Certifeate A umber : 5A6 Make: Cessna Al edel: 180K Description of Type Design Change: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-596, according to Bulletin No. 696, Revision 3, dated 2-02-01 and Master Drawing List No. 92801, Revision C, dated 2-02-01 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. Date of Application: 8-18-95 Date wisted: Fate of issmence: 8-25-95 Date Amended: 1-27-99, 4-19-99, 2-02-01 By Direction of the Administrator FEDERAL AVIATION (Signature) TOMINSTRATOR Michael Keiran DAS Staff Coordinator, DAS 5 SW (Title) ble by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or both FAA Form B110-2 (10-68) Page 1 of 3 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09017AC-D Limitations and Conditions: (con't.) Also eligible on Cessna model 180K (floatplane or amphibian) when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks). 2. Also eligible on Cessna model 180K (landplane) when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or any combination of the following STCs: STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks). FAA/DAS Approved Supplemental Flight Manual, P/N 891189, dated 8-25-95 is required for Cessna model 180K, S/N 18053000 and Below, Landplane, Floatplane or Amphibian, And The Above Model When Modified Per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) 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 891190, dated 8-25-95 is required for Cessna Model 180K, S/N 18053001 and On, Landplane, Floatplane or Amphibian, And The Above Model When Modified Per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) or later FAA Approved revisions of the above supplement. 5. FAA/DAS Approved Supplemental Flight Manual, P/N 891189, Revision 1, dated 1-27-99 is required for 1. Cessna model 180K, S/N 18053000 and below (floatplane or amphibian) and the above model when modified per STC SA1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna model 180K, S/N 18053000 and below (landplane) and the above model when modified per STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) and STC SA1435WE (Robertson STOL) or any combination of the above 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 891190, Revision 1, dated 1-27-99 is required for 1. Cessna model 180K, S/N 18053001 and on (floatplane or amphibian) and the above model when modified per STC SA1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna model 180K, S/N 18053001 and on (landplane) and the above model when modified per STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) and STC SA1435WE (Robertson STOL) or any combination of the above or later FAA Approved revisions of the above supplement 47. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09017AC-D Limitations and Conditions: (con't.) FAA/DAS Approved Supplemental Flight Manual, P/N 891189, Revision 2, dated 4-19-99 is required for 1. Cessna model 180K, S/N 18053000 and below (floatplane or amphibian) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna model 180K, S/N 18053000 and below (landplane) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or any of the following STCs: STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) or later FAA Approved revisions of the above supplement. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891190, Revision 2, dated 4-19-99 is required for 1. Cessna model 180K, S/N 18053001 and on (floatplane or amphibian) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna model 180K, S/N 18053001 and on (landplane) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or any combination of the following STCs: STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) or later FAA Approved revisions of the above supplement. 9. FAA/DAS Approved Supplemental Flight Manual, P/N 891189, Revision 3, dated 2-02-01 is required for 1. Cessna model 180K, S/N 18053000 and below (floatplane or amphibian) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705 WE (internal tip tanks); 2. Cessna model 180K, S/N 18053000 and below (landplane) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or any of the following STCs: STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) for S-TEC System 55/55X or later FAA Approved revisions of the above supplement. 10. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891190, Revision 3, dated 2-02-01 is required for 1. Cessna model 180K, S/N 18053001 and on (floatplane or amphibian) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna model 180K, S/N 18053001 and on (landplane) and the above model when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or any combination of the following STCs: STC SA649NW (gross weight increase), STC SA09132SC (engine conversion), STC SA09030SC (Hartzell propeller), STC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) for S-TEC Compatibility of this modification with other previously approved modifications must be determined by the installer. FAA Form 8110-2-1(10-69) Page 3 of 3 ## Every issue (1) - February 2, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a3/be/a3bec04cd762cd7022be6d4f9c3f6a21e51c396270ba8fad6c66bd3088b47ff5) --- 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.