STC SA09442AC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09442AC-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 fellouting product with the limitations and conditions therefor as specifed hescon meets the arcorthiness requiements of Part 3 of the Cird d i Regulations.

Original Product Type Certificate A umter: 3A17 Make: Cessna Model: 172RG Description of Type Design Change:

Installation of S-TEC System 20/30 Single and Two Axis Automatic Flight Guidance Systems, Model ST-874-20/30, according to Bulletin No. 974, dated 4-26-00 and Master Drawing List No. 921180, dated 4-26-00 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: 4-27-00 Date raisted:

Date of Issuance: 5-01-00 Date Amended:

By Direction of the Administrator FEDERAL AVIATION mill ta (Signature) TOMNISTRATO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title) 47

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09442AC-D Limitations and Conditions: (con't.)

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891987, dated 5-01-00 is required for Cessna model 172RG for S-TEC System 20 or later FAA Approved revisions of the above supplement.

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891988, dated 5-01-00 is required for Cessna model 172RG 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 Form 8110-2-1(10-69) Page 2 of 2

INSTRUCTIONS. The transfer endorsement below may be used to notify the appropriate FAA Fegional Office of the transfer of this 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 and street) (City, State, and ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink):