STC SA09340AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09340 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 limitations and conditions therefor as speciped horeon meets the aworthiness requrements of Fart 3 of the Civil In Kegulations.

Original Product I ype Certipeate A amber: 3A21 Make: Cessna Model: 210L, T210L, 210M, T210M, 210N, T210N, 210R, and T210R Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-770-20/30, according to Bulletin No. 870, dated 2-5-98 and Master Drawing List No. 921072, dated 2-5-98 or later FAA Approved revisions of the above data (28 Volt System).

Also eligible on Models 210L, T210L, 210M, and T210M When Modified Per STC SA1525WE (Robertson STOL).

Also eligible on Model T210L When Modified Per STC SA2689SW (RAM Modification).

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

If the holder agrees to permit another feison to use this certificate to alter the product, the holder shall yive the other porson written evidence of that permission

suspended, vevched or a termination date is othernse established by the Administrater of the Federal-d viation Administration.

Date of Application: 2-9-98 Date visued:

Date of Issuance: 2-11-98 Date Amended:

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

3. Also eligible on Models 210N and T210N When Modified Per STC SA756NW (Robertson STOL).

FAA/DAS Approved Supplemental Flight Manual, P/N 891655, dated 2-11-98 is required for Cessna Models 210L, T210L, 210M, T210M and T210L When Modified Per ST SA2689SW (RAM Modification) 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 891656, dated 2-11-98 is required for Cessna Models 210L, 1210L, 210M, and T210M When Modified Per STC SA 1525WE (Robertson STOL) for S-TEC System 20 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 891657, dated 2-11-98 is required for Cessna Models 210N and T210N And The Above Models When Modified Per STC SA756NW (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 891658, dated 2-11-98 is required for Cessna Models 210R And T210R for S-TEC System 20 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891659, dated 2-11-98 is required for Cessna Models 210L, T210L, 210M, T210M, and T210L When Modified Per STC SA2689SW (RAM Modification) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

9. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement. P/N 891660, dated 2-11-98 is required for Cessna Models 210L, T210L, 210M, and T210M When Modified Per STC SAI525WE (Robertson STOL) for S-TEC System 30 or later FAA Approved revisions of the above supplement.

10. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891661, dated 2-11-98 is required for Cessna Models 210N and T210N And The Above Models When Modified Per STC SA756NW (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 891662, dated 2-11-98 is required for Cessna Models 210R and T210R 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 For# 9110-2-1(10-691 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):