# STC SA09154AC-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-616,
- Applied: May 6, 1996
- Status date: October 12, 2001
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/41/ef/41efeff9905c45e856d7e1931e93ebb247240478a64073eee5280cd7ce0e5840
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D3AADB46D9932F2385256CC1007F39F0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09154AC-D

## ADs that name it (0)

None.

## Approved models (4)

- Cessna Aircraft Company R172E ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company R172F ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company R172G ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company R172H ([TCDS 3A17](https://openairdocs.org/tcds/3A17))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09154AC-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 felloring product with the limitations and conditions therfer as speciped hereon weets the nincorthiness rquiements of Fat i of the Fird tin Regulations.

Original Product Type Certifcate A unter: ЗА17 Make: Cessna Model: R172E, R172F, R172G, and R172H Pescription of Type Design Change Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-616.

according to Bulletin No. 716, Revision 2, dated 10-12-01 and Master Drawing List No. 92925, Revision B, dated 10-12-01 or later FAA Approved revisions of the above data (14 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.

suspended, reeched or a termination dute is ethercise estutlished by thest ministator of the Fedead sintion Administration.

Date of Application: 5-06-96 Sate wisted:

Date of Issuance: 5-09-96 Date Amended: 10-12-01 By Direction of the Administrator FEDERAL AVIATION (Signature) TOMINISTRATO Michael Keirnan DAS Staff Coordinator. DAS 5 SW (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09154AC-D Limitations and Conditions: (con't.)

FAA/DAS Approved Supplemental Flight Manual, P/N 891258, dated 5-09-96 is required for Cessna Models R172E, R172F, R172G, and R172H or later FAA Approved revisions of the above supplement.

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891258, Revision 1, dated 10-12-01 is required for Cessna models R172E, R172F, R172G, and R172H for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

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

PAA Form B110-2-1/10-69) Page 2 of 2

The FAA will reissue the certificate in the name of the transferee and forward it to wim

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):

## Every issue (1)

- October 12, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/41/ef/41efeff9905c45e856d7e1931e93ebb247240478a64073eee5280cd7ce0e5840)

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