# STC SA09197AC-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-657,
- Applied: January 30, 1997
- Status date: October 2, 2001
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-790](https://openairdocs.org/tcds/A-790)
- Certificate PDF: https://openairdocs.org/files/sha256/0a/7d/0a7d3fcb33dfff9c97e2110352746f5adb18637bfbd799d1d7b839cce838b23e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/75A6E15AE0163F1385256CC1007F3A0A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09197AC-D

## ADs that name it (0)

None.

## Approved models (4)

- Cessna Aircraft Company 190 ([TCDS A-790](https://openairdocs.org/tcds/A-790))
- Cessna Aircraft Company 195 ([TCDS A-790](https://openairdocs.org/tcds/A-790))
- Cessna Aircraft Company 195A ([TCDS A-790](https://openairdocs.org/tcds/A-790))
- Cessna Aircraft Company 195B ([TCDS A-790](https://openairdocs.org/tcds/A-790))

## 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: SA09197AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 9 art 3 of the Civil sir Regulations.

Original Product I ype Certificate Number: A-790 Мако : Cessna Model: 190, 195, 195A, and 195B Description of Type Design Change:

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-657, according to Bulletin No. 757, Revision 1, dated 10-02-01 and Master Drawing List No. 92969, Revision A, dated 10-02-01 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.

Date of Application: 1-30-97 Date Reissued:

Date of Issuance: 2-05-97 Date Amended: 10-02-01 By Direction of the Administrator FEDERAL AVIATION saile K (Signature) TOMINISTRATIO 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: SA09197AC-D Limitations and Conditions: (con't.)

Also eligible on the above models when modified per STC SA2266WE (450 H.P. engine conversion).

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891323, dated 2-05-97 is required for Cessna Models 190, 195, 195A, and 195B And These Models When Modified Per STC SA2266WE (450 H.P. Engine Conversion) or later FAA Approved revisions of the above supplement.

3. FAA/DAS Approved Supplemental Flight Manual, P/N 891323, Revision 1, dated 10-02-01 is required for Cessna models 190, 195, 195A, and 195B and these models when modified per STC SA2266WE (450 H.P. engine conversion) for S-TEC System 55/55X 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.

or boch.

INSTRUCTIONS: The transter endorsement below may be used to notify the appropriate FAA Regional Office of the transfer of the Supplemental Type Certificate.

The FAA will reissue the certificate in the name of the transferee and forward it ts nim.

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 codel Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- October 2, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/0a/7d/0a7d3fcb33dfff9c97e2110352746f5adb18637bfbd799d1d7b839cce838b23e)

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