STC SA09419AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09419ACD This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 I met 23 of the Federal A rintion Requutions.

Original Product I ype Certificate A umber: A6CE Make: Cessna Model: 337D, T337D, 337E, T337E, 337F, T337F, 337G, T337G.

337H, P337H, T337H, and T337H-SP Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-869-20/30, according to Bulletin No. 969, dated 10-20-99 and Master Drawing List No. 921165, dated 10-20-99 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.

Iate of ripplicution: 10-21-99 Date Reissued:

Date of Issuance: 10-25-99 Date Amended:

By Direction of the Administrator FEDERAL AVIATION Aished Ki (Signature) TOMINSTRATIO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

FAA Form 8110-2110-681 Page 1 of

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09419AC-D Limitations and Conditions: (con't.)

Also eligible on the above models when modified per STC SA937CE (Horton STOL Craft conversion).

2. Also eligible on the above models when modified per STC SA1627WE (Robertson STOL conversion).

3. FAA/DAS Approved Supplemental Flight Manual, P/N 891893, dated 10-25-99 is required for Cessna models 337D, 1337D, 337E, T337Е, 337F, T337F, 337G, T337G, 337H, P337H, T337H, and 1337H-SP and the above models when modified per STC SA937CE (Horton STOL Craft conversion) for S-TEC System 20 or later FAA Approved revisions of the above supplement.

4. FAA/DAS Approved Supplemental Flight Manual, P/N 891894, dated 10-25-99 is required for Cessna models 337D, 1337D, 337E, T337E, 337F, T337F, 337G, T337G, 337H, P337H, T337H, and T337H-SP when modified per STC SA1627WE (Robertson STOL conversion) for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891897, dated 10-25-99 is required for Cessna models 337D, T337D, 337E, T337E, 337F, T337F, 337G, T337G, 337H, P337H, T337H, and T337H-SP and the above models when modified per STC SA937CE (Horton STOL Craft conversion) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

6. FAA/DAS Approved Supplemental Flight Manual, P/N 891898, dated 10-25-99 is required for Cessna models 337D, T337D, 337E, T337E, 337F, T337F, 337G, T337G, 337H, P337H, T337H, and T337H-SP when modified per STC SA1627WE (Robertson STOL conversion) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

7. 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

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):