# STC SA09147AC-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-628.
- Applied: April 1, 1996
- Status date: April 3, 1996
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A19](https://openairdocs.org/tcds/3A19)
- Certificate PDF: https://openairdocs.org/files/sha256/e2/93/e2936fefe28f42a206a321bf76a12b9fee61b3e51e583d3ca51b5729e2fd5d25
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8840C8BA07F399B185256CC1007F39E6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09147AC-D

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company 152 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- Cessna Aircraft Company A152 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))

## What the certificate says

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

*Enited Stares a Serica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA09147AC-D This certificate issued to: S-TEC Corporation 946 Pegram Mineral Wells, Texas 76067 Port 3 of the CIVIl Air Regulations Original Product -Type Cortificate Number: 3A19 Make: Cessna Model: 152 and A152 Description of Type Design Change:

Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-628, according to Bulletin No. 728, dated 3-29-96 and Master Drawing List No. 92921, dated 3-29-96 or later FAA Approved revisions of the above data (28 Volt System).

1. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891246, dated 4-03-96 is required for Cessna Models 152 and A152 for S-TEC System 40 or later FAA Approved revisions of the above supplement.

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

Thomas DAS Staff Coordinator, DAS 5 SW (Title) 47 FAA Fosa 8110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09147AC-D Limitations and Conditions: (con't.)

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891248, dated 4-03-96 is required for Cessna Models 152 and A152 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)

- April 3, 1996: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e2/93/e2936fefe28f42a206a321bf76a12b9fee61b3e51e583d3ca51b5729e2fd5d25)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.