STC SA09267AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09267AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Fast 3 of the Livil In Kegulations.

Original Product I ype Certifieate A umber: 5A6 Make: Cessna Model: 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, and 180K Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-720-20/30, according to Bulletin No. 820, Revision 3, dated 3-15-99 and Master Drawing List No. 921020, Revision C, dated 3-15-99 or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on the above models (floatplane or amphibian) when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks).

(See Continuation Sheets, Pages 2, 3, 4, and 5, 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.

Inte of afflintion: 8-12-97 Pate wessued :

Pale of ssnance: 8-15-97 Date Amended: 1-04-99, 3-19-99, Revision 2 By Direction of the Administrator FEDERAL AVIATION (Signature) TOMINISTRATIO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title) ation of this certificate is punishable by a fine of not exceeding 51,000, or imprisonment not exceeding 3 years, or both.

Page 1 of 5 may be transferred in accordance with FAR 21.47

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09267 AC-D, Revision 2 Limitations and Conditions: (con't.)

2. Also eligible on the above models (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 SA 1705WE (internal tip tanks).

FAA/DAS Approved Supplemental Flight Manual, P/N 891491, dated 8-15-97 is required for Cessna Models 180, 180A, 180B, 180C, 180D, 180E, and 180F (Landplane, Floatplane or Amphibian) and The Above Models When Modified per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) for S-TEC System 20 or later FAA Approved revisions of the above supplement.

4. FAA/DAS Approved Supplemental Flight Manual, P/N 891492, dated 8-15-97 is required for Cessna Models 180G, 180H, 180J; and 180K, S/N 18053000 and Below (Landplane, Floatplane or Amphibian) and The Above Models When Modified Per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) for S-TEC System 20 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 891493, dated 8-15-97 is required for Cessna Model 180K, S/N 18053001 and Up (Landplane, Floatplane or Amphibian) and The Above Model When Modified Per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) for S-TEC System 20 or later FAA Approved

6. FAA/DAS Approved Supplemental Flight Manual, P/N 891496, dated 8-15-97 is required for Cessna Models 180, 180A, 180B, 180C, 180D, 180E, and 180F (Landplane, Floatplane or Amphibian) and The Above Models When Modified per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) for S-TEC System 30 or later FAA Approved revision of the above supplement.

7. FAA/DAS Approved Supplemental Flight Manual, P/N 891497, dated 8-15-97 is required for Cessna Models 180G, 180H, 180J; and 180K, S/N 18053000 and Below (Landplane, Floatplane or Amphibian) and The Above Models When Modified Per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

8. FAA/DAS Approved Pilot's Operating Handbook and'or Airplane Flight Manual Supplement, P/N 891498, dated 8-15-97 is required for Cessna Model 180K, S/N 18053001 and Up (Landplane, Floatplane or Amphibian) and The Above Model When Modified Per STC SA1705WE (Internal Tip Tanks) and/or STC SA1435WE (Robertson STOL) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

000, or imprisonment not exceeding 3 years, or both.

FAA Form 8110-2-1(10-69) Page 2 of 5

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09267 AC-D, Revision 2 Limitations and Conditions: (con't.)

9. FAA/DAS Approved Supplemental Flight Manual, P/N 891491, Revision 1, dated 1-04-99 is required for 1. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (floatplane or amphibian) and the above models when modified per STC SA1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (landplane) and the above models 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 for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891492, Revision 1, dated 1-04-99 is required for 1. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (floatplane or amphibian) and the above models when modified per STC SA1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (landplane) and the above models 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 for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891493, Revision 1, dated 1-04-99 is required for 1. Cessna model 180K, S/N 18053001 and up (floatplane or amphibian) and the above model when modified per STC SA 1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna model 180K, S/N 18053001 and up (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 for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891496, Revision 1, dated 1-04-99 is required for 1. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (floatplane or amphibian) and the above models when modified per STC SA1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (landplane) and the above models 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 for S-TEC System 30 or later FAA Approved revisions of the above supplement.

FAA Form 8110-2-1(10-69) Page 3 of 5

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09267AC-D, Revision 2 Limitations and Conditions: (con't.)

FAA/DAS Approved Supplemental Flight Manual, P/N 891497, Revision 1, dated 1-04-99 is required for 1. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (floatplane or amphibian) and the above models when modified per STC SA1705WE (internal tip tanks) and/or STC SA1435WE (Robertson STOL) 2. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (landplane) and the above models 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 for S-TEC System 30 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891498, Revision 1, dated 1-04-99 is required for 1. Cessna model 180K, S/N 18053001 and up (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 up (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 for S-TEC System 30 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891491, Revision 2, dated 3-19-99 is required tor 1. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (floatplane or amphibian) and the above models when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (landplane) and the above models 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 SA 1603SO (speed kit), STC SA1705WE (internal tip tanks) for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891492, Revision 2, dated 3-19-99 is required for 1. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (floatplane or amphibian) and the above models when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (landplane) and the above models 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 System 20 or later FAA Approved revisions of the above supplement.

FAA Form 8110-2-1(10-69) Page 4 of 5

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09267AC-D, Revision 2 Limitations and Conditions: (con't.)

17. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891493, Revision 2, dated 3-19-99 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) for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891496, Revision 2, dated 3-19-99 is required for 1. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (floatplane or amphibian) and the above models when equipped with STC SA1435WE (Robertson STOL) or SIC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna models 180, 180A, 180B, 180C, 180D, 180E, and 180F (landplane) and the above models 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 System 30 or later FAA Approved revisions of the above supplement.

19. FAA/DAS Approved Supplemental Flight Manual, P/N 891497, Revision 2, dated 3-19-99 is required for 1. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (floatplane or amphibian) and the above models when equipped with STC SA1435WE (Robertson STOL) or STC SA967CE (Horton STOL) and/or STC SA1705WE (internal tip tanks); 2. Cessna models 180G, 180H, 180J; and 180K, S/N 18053000 and below (landplane) and the above models 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), SIC SA1603SO (speed kit), STC SA1705WE (internal tip tanks) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891498, Revision 2, dated 3-19-99 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) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

21. Compatibility of this modification with other previously approved modifications must be determined by the installer.

FAA Form 8110-2-1(10-69) Page 5 of 5

TRANSFER ENDORSEMENT 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 & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):