# STC SA5192SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 40/50 single and two axis automatic flight guidance systems Model ST-184-40/50.
- Applied: July 22, 1983
- Status date: September 4, 1986
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/09/15/0915208783bec3afe6cdb550bfa4753e5931a441d5a5630f1cc31578c94c5aa8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D6DF0BADC38BAC0486257EC8005178D6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5192SW-D

## ADs that name it (0)

None.

## Approved models (4)

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

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

United gratis of anrnca Bepartmcnt of transportation—federal aoiation administration Supplemental 'Cgpe Certificate <siivm<vw' SA5192SW-D S-TEC Corporation Rt. 4, Bldg. 946 Welters Industrial Complex Mineral Wells, TX 76067 /-M'iM4^4i^^ /i*eaA^^ 3 jdj&e Civil Air

• .scta4&ta&.fnA • CfaioAnJu Jiwcuic/ ——• ^/<ufie '&e<pl4fien£e'iSlivm0e<* 3A12 CESSNA 172M, 172N, 172P AND 172Q ^Zjs&icmA&CTi: d <Uyfit _/ -f^ian ~C*A&n&e :

Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-184-40/50, according to Bulletin No. 284, Revision 3, dated 7-01-86 and Master Drawing List No. 92212, Revision C, dated 7-01-86 and/or later FAA Approved revisions of the above data (28 Volt System).

1. Also eligible on Cessna Models 172M, 172N and 172P when modified by 180 H.P.

Engine Conversion.

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

S&dm*rvi&&a£>r-d' 7-22-83 QL&^uA^ut: 3-13-84, 9-04-86, Revision 2 8-16-83 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Tittt)

This certificate may ke traiafemd in uttvJanet with FAR 21.47.

**FAA FOMI SMO-2 (10-41)**

United $tatts of America Bepartment of TCransportadon— federal atn'adon Administration Supplemental l^pe Certificate(Continuation £hcet) SA5192SW-D, Revision 2

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89244, dated 8-16-83 is required for Cessna Model 172N, S/N 17271035 and on, and Cessna Model 172P for S-TEC System 40 and/or later FAA Approved revisions of the above supplement.

3. FAA Approved Supplemental Flight Manual, P/N 89245, dated 8-16-83 is required for Cessna Model 172M, 172N, S/N 17271034 and below for S-TEC System 40 and/or later FAA Approved revisions of the above supplement.

4. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89246, dated 8-16-83 is required for Cessna Model 172N, S/N 17271035 and on, and Cessna Model 172P for S-TEC System 50 and/or later FAA Approved revisions of the above supplement.

5. FAA Approved Supplemental Flight Manual, P/N 89247, dated 8-16-83 is required for Cessna Models 172M, 172N, S/N 17271034 and below for S-TEC System 50 and/or later FAA Approved revisions of the above supplement.

6. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89244-1, dated 3-13-84 is required for Cessna Model 172N, S/N 17271035 and on and Cessna Models 172P and 172Q, for S-TEC System 40 and/or later FAA Approved revisions of the above supplement.

7. FAA Approved Supplemental Flight Manual, P/N 89245-1, dated 3-13-84 is required for Cessna Models 172M, 172N, S/N 17271034 and below for S-TEC System 40 and/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 89246-1, dated 3-13-84 is required for Cessna Model 172N, S/N 17271035 and on and Cessna Models 172P and 172Q for S-TEC System 50 and/or later FAA Approved revisions of the above supplement.

9. FAA Approved Supplemental Flight Manual, P/N 89247-1, dated 3-13-84 Is, required for Cessna Models 172M, 172N, S/N 17271034 and below for S-TEC System 50 and/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 89244-2, dated 9-04-86 is required for Cessna Model 172N, S/N 17271035 and on and Cessna Models 172P and 172Q and Cessna Models 172N, S/N 17271035 and on and 172P when modified by 180 H.P. Engine Conversion for S-TEC System 40 and/or later FAA Approved revisions of the above supplement.

(See Continuation Sheet, Page 3, a part of this STC.)

/l'iv altrra/ian nf this certificate is punishable by a fine of not exceeding Sl,000, or imprisonment not exceeding .3 years, or bnlh FAA FORM 8110-2-1 (1O-69) This certificate may be tram/erred in accordance with 1'All i'/.!7.

**PAGE2 OF 3 PAGES**

tinted $tatts of America department of Transportation— federal 2lto'ation administration Supplemental ICgpe Certificate(Continuation £heet) SA5192SW-D, Revision 2 Limitations and Conditions (con't)

11. FAA Approved Supplemental Flight Manual, P/N 89245-2, dated 9-04-86 is required for Cessna Models 172M, 172N, S/N 17271034 and below and Cessna Models 172M, 172N, S/N 17271034 and below when modified by 180 H.P. Engine Conversion for S-TEC System 40 and/or later FAA Approved revisions of the above supplement.

12. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89246-2, dated 9-04-86 is required for Cessna Models 172N, S/N 17271035 and on and Cessna Models 172P and 172Q and Cessna Models 172N, S/N 17271035 and on and 172P when modified by 180 H.P. Engine Conversion for S-TEC System 50 and/or later FAA Approved revisions of the above supplement.

13. FAA Approved Supplemental Flight Manual, P/N 89247-2, dated 9-04-86 is required for Cessna Models 172M, 172N, S/N 17271034 and below and Cessna Models 172M, 172N, S/N 17271034 and below when modified by 180 H.P. Engine Conversion for S-TEC System 50 and/or later FAA Approved revisions of the above supplement.

14. Compatability of this modification with other previously approved modifications must be detemined by the installer.

An\ alteration of this certificate is punishable by a fine of not exceeding Si, 000, or imprisonment not exceeding .3 years, or both.

FAA FORM Biio-2-1 (1O-69) This certificate may be transferred in accordance with l-'AR i'1.17.

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 ^IP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- September 4, 1986: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/09/15/0915208783bec3afe6cdb550bfa4753e5931a441d5a5630f1cc31578c94c5aa8)

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