STC SA09268AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09268 AC-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 for the following product with the lanitations and conditions therefer as specifed hercon meets the aircetthiness requiements of 3 art 3 of the Vicit di Regulations.

Original Product I ype Certificate A umber: 3A24 Make: Cessna Al clot: 185, 185A, 185B, 185C, 185D, 185E, A185E, and A185F 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).

Also eligible on the above models (landplane, floatplane or amphibian) when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks).

(See Continuation Sheet, Pages 2 and 3, 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.

suspended, sereted or a termination date is etherase established by the «Adwinistator of the Federal drintion

• Administration.

Date of Application: 8-12-97 Date Reissued:

Date of Issuance: 8-15-97 Date Amended: 3-19-99, Revision 1 By Direction of the Administrator FEDERAL AVIATON Milli (Signature) TOMINISTRATO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title) hable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or both.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09268AC-D, Revision 1 Limitations and Conditions: (con't.)

FAA/DAS Approved Supplemental Flight Manual, P/N 891494, dated 8-15-97 is required for Cessna Models 185, 185A, 185B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and Below (Landplane, Floatplane or Amphibian) and The Above Models When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441WE (Robertson STOL) 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 891495, dated 8-15-97 is required for Cessna Model A185F, S/N 18503684 and Up (Landplane, Floatplane or Amphibian) and The Above Model When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441WE (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 891499, dated 8-15-97 is required for Cessna Modeis 183, 185A, 183B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and Below (Landplane, Floatplane or Amphibian) and The Above Models When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441WE (Robertson STOL) 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 891500, dated 8-15-97 is required for Cessna Model A185F, S/N 18503684 and Up (Landplane, Floatplane or Amphibian) and The Above Model When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441WE (Robertson STOL) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

6. FAA/DAS Approved Supplemental Flight Manual, P/N 891494, Revision 1, dated 3-19-99 is required for Cessna models 185, 185A, 185B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and below (landplane, floatplane or amphibian) and the above models when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks) for S- TEC System 20 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 891495, Revision 1, dated 3-19-99 is required for Cessna model A185F, S/N 18503684 and up (landplane, floatplane or amphibian) and the above model when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (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 2 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09268AC-D, Revision 1 Limitations and Conditions: (con't.)

FAA/DAS Approved Supplemental Flight Manual, P/N 891499, Revision 1, dated 3-19-99 is required for Cessna models 185, 185A, 185B, 185C, 185D, 185E, A185E; and A185F, S/N 18503683 and below (landplane, floatplane or amphibian) and the above models when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (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 891500, Revision 1, dated 3-19-99 is required for Cessna model A185F, S/N 18503684 and up (landplane, floatplane or amphibian) and the above model when equipped with STC SA1441WE (Robertson STOL) or STC SA968CE (Horton STOL) and/or STC SA2529WE (internal tip tanks) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

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

FAA Form B110-2-1(10-69) Page 3 of 3

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) ICity, State, and ZIP codel Extent of Authority (if licensing agreement):

Signature of grantor (In ink):