# STC SA09134AC-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-6I2,
- Applied: November 29, 1995
- Status date: February 28, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4EU](https://openairdocs.org/tcds/A4EU)
- Certificate PDF: https://openairdocs.org/files/sha256/eb/72/eb720f4dcf35f1186a6b986e22fe2d8288225accebb4a60318c091e3614c4453
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EC2DDED9A5B678F485256CC1007F39D6.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA09134AC-D

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company F172M ([TCDS A4EU](https://openairdocs.org/tcds/A4EU))
- Cessna Aircraft Company F172N ([TCDS A4EU](https://openairdocs.org/tcds/A4EU))

## 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: SA09134AC-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 fat 3 of the Cred ln Regulations.

Original Product Type Certificate A umker: A4EU Make: Reims Aviation S.A. Cessna Model: F172M and F172N Description of Type Design Change:

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-612, according to Bulletin No. 712, Revision 2, dated 2-28-01 and Master Drawing List No. 92827, Revision B, dated 2-28-01 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: 11-29-95 Late wisted:

Date of Issuance: 12-04-95 Date Amended: 2-28-01 By Direction of the Administrator FEDERAL AVIATION тійк (Signature) TOMINISTRATO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

The FAR will reissue the certificate in the name ef the transferee and forward at to inm.

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):

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA09134AC-D Limitations and Conditions: (con't.)

1. Also eligible on Models F172M and F172N When Modified by 180 H.P. Engine Conversion.

FAA/DAS Approved Supplemental Flight Manual, P/N 891221, dated 12-04-95 is required for Reims Aviation S.A. Cessna Model F172M And The Above Model When Modified By 180 H.P. Engine Conversion or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891222, dated 12-04-95 is required for Reims Aviation S.A. Cessna Model F172N And The Above Model When Modified By 180 H.P. Engine Conversion or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 891221, Revision 1, dated 2-28-01 is required for Reims Aviation S.A. Cessna model F172M and the above model when modified by 180 H.P. engine conversion for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

5. FAA/DAS Approved Supplemental Flight Manual, P/N 891222, Revision 1, dated 2-28-01 is required for Reims Aviation S.A. Cessna model F172N and the above model when modified by 180 H.P. engine conversion for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

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

FAA Form 8110-2-1(10-69) Page 2 of 2

## Every issue (1)

- February 28, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/eb/72/eb720f4dcf35f1186a6b986e22fe2d8288225accebb4a60318c091e3614c4453)

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