STC SA09277AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09277AC-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 limitations and conditions therefor as specified horeen meets the aiworthiness requiroments of I art 3 of the Civid his Regulations.

Original Product I ype berlifeate A umber: 3A24 Make: Cessna Al cdel.: A 185F Description of Type Design Change:

Installation of S-TEC System 30 ALT Altitude Hold System, Model ST-723, according to Bulletin No.

823, dated 10-01-97 and Master Drawing List No. 921024, dated 10-01-97 or later FAA Approved revisions of the above data (28 Volt System).

Also eligible on The Above Model When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA1441 WE (Robertson STOL) (Landplane, Floatplane or Amphibian).

(See Continuation Sheet, Page 2, a part of this STC.)

sespended, revoked or a tomination date is otherese established by the Administrator of the Federat A viation Vaminstration.

Date of Application: 10-02-97 Date Reissued:

Date of Issuance: 10-06-97 Date Amended:

By Direction of the Administrator FEDERAL AVIATION Wisen Homer TOMINISTRATOR William J. Thomas DAS Staff Coordinator, DAS 5 SW (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number 5A09277AC-D Limitations and Conditions: (con't.)

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891523, dated 10-06-97 is required for Cessna Model A185F, S/N 18503683 And Below (Landplane, Floatplane or Amphibian) And The Above Model When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA144IWE (Robertson STOL) 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 891524, dated 10-06-97 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 SA 1441WE (Robertson STOL) or later FAA Approved revisions of the above supplement.

4. 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

The FAA will reissue the certificate in the name of the transferee and futward it to hims

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):