STC SA09322AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09322AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Part 3 of the Cird An hogulations.

Original Product I ype Certifcate Number: 3A24 Make: Cessna Model: 185, 185A, 185B, 185C, 185D, 185E, A185E, and A185F Description of Type Design Change:

Installation of S-TEC System 30 ALT Altitude Hold System, Model ST-721, according to Bulletin No.

821, dated 12-30-97 and Master Drawing List No. 921058, dated 12-30-97 or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on The Above Models When Modified Per STC SA2529WE (Internal Tip Tanks) and/or STC SA 1441 WE (Robertson STOL) (Landplane, Floatplane or Amphibian).

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

suspended, revoked or a termination date d otherse established by the d dministator of the Federal & viation Administration.

Date of Application: 12-31-97 Date Reissued:

Dale of issmence: 1-03-98 Date Amended:

By Direction of the Administrator FEDERAL AVIATION Wien Shames 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: SA09322AC-D Limitations and Conditions: (con't.)

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891627, dated 1-03-98 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 SA1441 WE (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 891628, dated 1-03-98 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) 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.

47.

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):