STC SA09374AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09374 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 finitations and conditions therefer as speciped hereon meets the aiworthiness requiements of fat 3 of the Cord do Kegulations.

Original Product I ype Certifcate A umter: ЗА15 Make: Beech Model: 35-33, 35-А33, 35-В33, 35-С33, 35-С33А, Е33.

E33A, E33C, F33, F33C, G33, and F33A Description of Type Design Change:

Installation of S-TEC System 30 ALT Altitude Hold System, Model ST-825, according to Bulletin No 925, dated 6-15-98 and Master Drawing List No. 921102, dated 6-15-98 or later FAA Approved revisions of the above data (14 Volt System).

Only eligible on Beech Model F33A, S/N CE-315 & Below.

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: 6-15-98 Date Reissued:

Late of ismance: 6-18-98 Date Amended:

By Direction of the Administrator FEDERAL AVIATION Mill 1L (Signature) TOMINSTRATO Mike Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09374AC-D Limitations and Conditions: (con't.)

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891748, dated 6-18-98 is required for Beech Models 35-33, 35-A33, and 35-B33 or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891749, dated 6-18-98 is required for Beech Models 35-C33, 35-C33A, E33, E33A, E33C, F33, F33A, S/N CE-315 and Below, F33C and G33 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 811C-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):