STC SA09391AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09391AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 9 art 3 of the Civil Air Kegulutions.

Original Product I ype Celifeate A umber: A4CE Matic : Cessna Model: U206G AND TU206G Description of Type Design Change:

Installation of S-TEC System 30 ALT Altitude Hold System, Model ST-838, according to Bulletin No 938, dated 9-14-98 and Master Drawing List No. 921120 dated 9-14-98 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.

Date of Application: 9-15-98 Date Reissued:

Date of Issuance: 9-17-98 Date Amended:

By Direction of the Administrator FEDERAL AVIATION silK (Signature) TOMINISTRATIOS Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

97.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number 5A09391 AC-D Limitations and Conditions: (con't.)

1. Also Eligible on Cessna Models U206G and TU206G (Landplane, Floatplane, or Amphibian Configuration) When Modified By Any Of The Following STCs: STC SA1513WE (Robertson STOL) or STC SA2353NM (Soloy Engine Conversion) And/Or STC SA3634SW (Extended Range Fuel Tanks) And/Or STC SA914NE (Wing Tip Extensions).

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891801, dated 9-17-98 is required for Cessna Models U206G and TU206G (Landplane Configuration) And These Models When Modified Per STC SA3634SW (Extended Range Fuel Tanks) And/Or STC SA914NE (Wing Tip Extensions) or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891802, dated 9-17-98 is required for Cessna Models U206G and TU206G (Landplane Configuration) When Modified Per STC SA1513WE (Robertson STOL) And/Or STC SA914NE (Wing Tip Extensions) or later FAA Approved revisions of the above supplement FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891803, dated 9-17-98 is required for Cessna Models U206G and TU206G (Landplane Configuration) When Modified Per STC SA2353NM (Soloy Engine Conversion) With or Without SIC SA3634SW (Extended Range Fuel Tanks) And/Or STC SA914NE (Wing Tip Extensions) 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 891804, dated 9-17-98 is required for Cessna Models U206G and TU206G (Floatplane or Amphibian Configuration) And These Models When Modified Per STC SA3634SW (Extended Range Fuel Tanks) And/Or STC SA2353NM (Soloy Engine Conversion) And/Or STC SA914NE (Wing Tip Extensions) or later FAA Approved revisions of the above supplement.

6. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891805, dated 9-17-98 is required for Cessna Models 0206G and T0206G (Floatplane or Amphibian Configuration) When Modified Per STC SA1513WE (Robertson STOL) And/Or STC SA914NE (Wing Tip Extensions) 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

INSTRUCTIONS: The transfer andorsement below may be used to notify the appropriate FAA Regional Office of the transfer of the Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it to him.

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):