STC SA5383SW-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA53835N-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 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: .

nstallation of S-TEC System 40/50 Sinqle and Two Axis Automatic rl1ght Guldanc Systems, Model ST-182-40/50, according to Bulletin No. 282, Revision 2, dated and Master Drawing List No. 92213, Revision B, dated 9-06-88 is required and/or later FAA Approved revisions of the above data (14 Volt System).

1. FAA Approved Supplemental Flight Manual, P/N 89554, dated 3-01-85 is required for S-TEC System 40 and/or later FAA Approved revisions of the above supplement.

2. FAA Approved Supplemental Flight Manual, P/N 89555, dated 3-01-85 is required for S-TEC System 50 and/or later FAA Approved revisions of the above supplement.

3. Compatability of this modification with other previously approved modifications

Date of Application: 1-30-85 Date Reissued: 10-11-88, Revision 1 Date of Issuance: 3-01-85 Date Amended:

FEDERAL AVIATION By Direction of the Administrator sold It. Tabless ( Signalure ) TOMINISTRA DAS Staff Coordinator, DAS 5 SW Harold W. Holdeman (Tille)

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) trom (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):.

US GOVFRNMENT PRINTING OFFICE : 1966 OF -205-571