# STC SA09161AC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 40/50 single and two axis automatic flight guidance systems, Model ST-182-40/50.
- Applied: August 1, 1996
- Status date: August 7, 1996
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/0d/ac/0dac41c2f44574c73cb5f7399ef7fbe7c65624b6d45d2cad3fd58590c476a006
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/29FCF25FB996F0D185256CC1007F39F7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09161AC-D

## ADs that name it (0)

None.

## Approved models (4)

- Cessna Aircraft Company 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175A ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175B ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175C ([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.

Anita States of Sacrica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09161AC-D This certificate issued to: S-TEC Corporation 946 Pegram Mineral Wells, TX 76067 Poot 3 sf the CIVIl Air Regulations Original Product -Type Cortificate Numbon: 3A17 Make: Cessna Model: 175, 175A, 175B, and 175C Description of Type Design Change:

Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-182-40/50, according to Bulletin No. 282, Revision 4, dated 7-30-96 and Master Drawing List No. 92213, Revision D, dated 7-30-96 or later FAA Approved revisions of the above data (14 Volt System).

1. FAA/DAS Approved Supplemental Flight Manual, P/N 891287, dated 8-07-96 is required for Cessna Models 175, 175A, 175B, and 175C for S-TEC System 40 or later FAA Approved revisions of the above supplement.

(See Continuation Sheet, Page 2, a part of this STC.)

8-07-96 Date Amended:

EDERA AYTATION By Direction of the Administrator Wicen Shane CHINIST RANIO William J. Thomas DAS Staff Coordinator, DAS 5 SW (Title)

FAA Poss 8110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09161AC-0 Limitations and Conditions: (con't.)

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891288, dated 8-07-96 is required for Cessna Models 175, 175A, 175B, and 175C for S-TEC System 50 or later FAA Approved revisions of the above supplement.

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

**47 PAGE 2 OF 2 PAGES**

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)

- August 7, 1996: Issued, Current. [certificate](https://openairdocs.org/files/sha256/0d/ac/0dac41c2f44574c73cb5f7399ef7fbe7c65624b6d45d2cad3fd58590c476a006)

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