# STC SA5195SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 40/50 single and two axis automatic flight guidance systems, Model ST-183-40/50.
- Applied: July 29, 1983
- Status date: October 17, 1994
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/c1/b2/c1b24699aee9b432be04fb294646c050a4baceb4dab9bd9f099bc597a574885a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A9936C41C80AE22986257EC800523754.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5195SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Textron Aviation Inc. 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172N ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

## What the certificate says

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

Baird Sata of 2 cia Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA519554-0 This certificate issued to: S-TEC Corporation 946 Pegram Mineral Wells, Texas 76067 Port 3 of the CiVil Air Regulations Original Product -Type Contificate Numben: 3A12 Make: CESSNA Model: 172M AND 172N Description of Type Design Change:

Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-183-40/50, according to Bulletin No. 283, Revision 2, dated 8-12-94 and Master Drawing List No. 92211, Revision B, dated 8-12-94 or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on Models 172M and 172N When Modified By 180 H.P. Engine Conversion.

2. FAA Approved Supplemental Flight Manual, P/N 89242, dated 8-17-83 is required for S-TEC System 40 or later FAA Approved revisions of the above supplement.

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

8-17-83 Date Amended: 5-08-84, 8-22-94, 10-11-94 FEDERAL AVIATIO By Direction of the Administrator Revision 3 (478 ) PMINISTRATO DAS Staff Coordinator, DAS 5 SW William J. Thomas (Tille)

47.

PAN Foon 81 10-2 (10-60)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA51955W-D, Revision 3 Limitations and Conditions: (con't.)

3. FAA Approved Supplemental Flight Manual, P/N 89242-1, dated 5-08-84 is required for Cessna Model 172M for S-TEC System 40 or later FAA Approved revisions of the above supplement.

4. FAA Approved Supplemental Flight Manual, P/N 89242-2, dated 8-22-94 is requirec for Cessna Model 172M And The Above Model When Modified By 180 H.P. Engine Conversion for S-TEC System 40 or later FAA Approved revisions of the above supplement.

5. FAA Approved Supplemental Flight Manual, P/N 89243, dated 8-17-83 is required for S-TEC System 50 or later FAA Approved revisions of the above supplement.

6. FAA Approved Supplemental Flight Manual, P/N 89243-1, dated 5-08-84 is required for Cessna Model 172M for S-TEC System 50 or later FAA Approved revisions of the above supplement.

7. FAA Approved Supplemental Flight Manual, P/N 89243-2, dated 8-22-94 1s required for Cessna Model 172M And The Above Model When Modified By 180 H.P. Engine Conversion for S-TEC System 50 or later FAA Approved revisions of the above supplement.

8. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89464, dated 5-08-84 is required for Cessna Model 172N for S-TEC System 40 or later FAA Approved revisions of the above supplement.

9. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89464-1, dated 8-22-94 is required for Cessna Model 172N And The Above Model When Modified By 180 H.P. Engine Conversion for S-TEC System 40 or later FAA Approved revisions of the above supplement.

10. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89465, dated 5-08-84 is required for Cessna Model 172N for S-TEC System 50 or later FAA Approved revisions of the above supplement.

FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89465-1, dated 8-22-94 is required for Cessna Model 172N And The Above Model When Modified By 180 H.P. Engine Conversion for S-TEC System SU or later FAA Approved revisions of the above supplement.

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

FAA FORM 0110-2-1 (10-69) This certificate may be transferred in accordance with fAll :1.t7.

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 and street) (City, State, and ZIP code ) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

U.5. GOVERNMENT PRINTING OFFICE : 1966 Or-205-979

## Every issue (1)

- October 17, 1994: Amended, Current. [certificate](https://openairdocs.org/files/sha256/c1/b2/c1b24699aee9b432be04fb294646c050a4baceb4dab9bd9f099bc597a574885a)

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