STC SA5379SW-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA53795N-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the airvorthiness reguirements of Part 3 of the CiVil Air Regulations.

Original Product -TypeCertificate Number: 3A17 Make: Cessna Model: R172E, R172F, R172G and R172H Description of Type Design Change:

Installation of S-TEC System 60 Pitch Stabilization System, Model ST-096, with Optional Automatic Electric Trim System according to Bulletin No. 199, Revision 3, dated 9-02-88 and Master Drawing List No. 92144, Revision C, dated 9-02-88 and/or later FAA Approved revisions of the above data (14 Volt System).

1. FAA Approved Supplemental Flight Manual, P/N 89552, dated 2-25-85 is required and/or later FAA Approved revisions of the above supplement.

2. Compatability of this modification with other previously approved modifications must be determined by the installer.

Date of Application: 1-24-85 Date Reissued: 10-07-88, Revision 1 Date of Issuance: 2-25-85 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Terold It Halbleman (Signature ) YOMINISTRA DAS Staff Coordinator, DAS 5 SW Harold W. Holdeman (Title)

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 and street ) (City, Stale, and ZIP code ) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.