# STC SA7156SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 two axis automatic flight guidance system, Model ST-046 with optional automatic electric trim system.
- Applied: July 14, 1987
- Status date: July 23, 1987
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/c1/83/c183db10625ee219efa155290efcd7b622b07b9c0d86be6ed6bb2306cfce95b7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/19D845C1783517D185256CC20056A1BC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7156SW-D

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 172RG ([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.

nitro Scares of Sluerice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA71565W-D This certificate issued to: 11. S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Part 3 of the CiVil Air Regulations.

Original Product - Type Certificater Number: ЗА17 Маке: CESSNA Model: 172RG Description of Type Design Change:

Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-046 with Optional Automatic Electric Trim System according to Bulletin No.

149, Revision 4, dated 7-07-8/ and Master Drawing List No. 9265, Revision D, dated /-07-87 with Optional Flight Director Steering Horizon and/or later FAA Approved revisions of the above data (28 volt System).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 8977-1, dated 7-23-87 is required and/or later FAA Approved revisions of the above supplement.

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

Date of Application: 1-14-87 Date Reissued:

Date of Issuance: . 7-23-87 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) TAMINIST RATO DAS Staff Coordinator, DAS 5 SW Harold W. Holdeman (Tille)

47.

**FAX FORM 8110-2 (10-68)**

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Z1P code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and Z1P code) Exent of Authority (if licensing agreement) :

Signature of grantor (In ink) :

## Every issue (1)

- July 23, 1987: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c1/83/c183db10625ee219efa155290efcd7b622b07b9c0d86be6ed6bb2306cfce95b7)

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