# STC SA5201SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 50 two axis automatic flight guidance system, Model ST-182-50.
- Applied: July 22, 1983
- Status date: October 11, 1988
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/a6/65/a6657e87c1e2c5f4a8d303c4b1cdf084d8cfae4e854e448d072e5daff4275e3e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/27D819A58004947C85256CC20012277C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5201SW-D

## ADs that name it (0)

None.

## Approved models (8)

- Textron Aviation Inc. 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172F (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172G ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172H (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172I ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172K ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172L ([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 ^tatts or America Bcpartment of transportation— federal Stoiation administration Supplemental 'Cgpe Certificate tyKivm&ew SA5201SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 sM&^ujfodeAjjawfw 3 Civil Air 3A12 Cessna 172D, 172E, 172F, 172G, 172H, 1721, 172K Installation of S-TEC System 50 Two Axis Automatic Flight Guidance System, Model ST-182-50, according to Bulletin No. 282, Revision 2, dated 9-06-88 and Master Drawing List No. 92213, Revision B, dated 9-06-88 and/or later FAA Approved revisions of the above data (14 Volt System).

Also eligible on the above models when modified per STC SA420CE (Lycoming Engine 0-360-A1D, 180 HP).

FAA Approved Supplemental Flight Manual, P/N 89249, dated 9-08-83 is required and/or later FAA Approved revisions of the above supplement.

Compatability of this modification with other previously approved modificationsmust be determined by the installer.

V€lA4&f<}^^&fife9<€>VCl&A<rMlWS9*€>?W,^^ '*wi/Jciafa^fos?$i&p4viJte^&£a&^^ £$d?rtiw&&vi£p^^diw 7_22-83 9-08-83 1Q-11-88, Revision 1 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW(nit)

, FAA FotM 81 10-2 (10-68)

ttmtri Statu of ararrica Bepartmcnt of ^Transportation —federal aoiation administration Supplemental 'Cgpe Certificate SA5201SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 4rnA£a£4>nA:jz#i4/'<e&ntU/urnA< -r- ji4. jJifftSttff Afrt**n sme*& Jn4'Ja*i*uM>i*£ru/n4AA'/re&M4tt'n^'n&<&S Jlvrt -J <af.4n4/ LI VI I Air CESSNA //// 172D, 172E, 172F, 172G, 172H, 1721, 172K AND 172L _2 ' Alfrjti/tf-n <:^'2/yft* -J ^eAtan ''jA^tnM':

Installation of S-TEC System 50 Two Axis Automatic Flight Guidance System, Model ST-182-50, according to Bulletin No. 282, dated 7-13-83, and Master Drawing List No. 92213, dated 7-13-83, and/or later FAA Approved revisions of the above data, (14 Volt System).

Also eligible on the above models when modified in accordance with STC SA420CE (Lycoming Engine 0-360-A1D, 180 HP).

FAA Approved Supplemental Flight Manual, P/N 89249, dated 9-8-83 is required and/or later FAA Approved revisions of the above supplement.

Compatabil ity of this modification with other previously approved modifications must be determined by the installer.

^e#^rit/ria£^^ £&vnwn*&Jra£>f',ap 7-22-83 9-8-83 (Signature) Harold W. Holdeman DAS Staff Coordinator. DAS 5 SW (Title)

Tfiis certificate may be transferred in accordance with FAR 21.17.

10-2(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 ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ^1P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

US. GOVERNMENT PRINTING OFFICE : 1966 OF —205-579

## Every issue (1)

- October 11, 1988: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a6/65/a6657e87c1e2c5f4a8d303c4b1cdf084d8cfae4e854e448d072e5daff4275e3e)

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