# STC SA5174SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 single axis automatic flight guidance system Model ST-150.
- Applied: April 20, 1983
- Status date: June 20, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A18CE](https://openairdocs.org/tcds/A18CE)
- Certificate PDF: https://openairdocs.org/files/sha256/f8/1b/f81bf435c71fe896570dc8580185378d58e5000608af3d8a4678430a57ed2d84
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9E7AFF730387F7C486257EC8005DAC8E.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5174SW-D

## ADs that name it (0)

None.

## Approved models (3)

- Alexandria Aircraft LLC 17-30A ([TCDS A18CE](https://openairdocs.org/tcds/A18CE))
- Alexandria Aircraft LLC 17-31A ([TCDS A18CE](https://openairdocs.org/tcds/A18CE))
- Alexandria Aircraft LLC 17-31ATC ([TCDS A18CE](https://openairdocs.org/tcds/A18CE))

## 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 £tatu of anrrica Bepartmcnt of transportation —federal 2toiation administration Supplemental 'Cgpe Certificate tyuvrnvev'SA5174SW-D s-TEC Corporation Rt. 4, Bldg, 946 Wolters Industrial Complex Mineral Wells, TX 76067 ^r^StAwcLu^ M 23 d^b* Federal Aviation * -flfaMia A - 1 8 C E

BELLANCA 17-30A, 17-31A, AND 17-31ATC Installation of S-TEC System 60 Single Axis Automatic Flight Guidance System, Model ST-150 according to Bulletin No, 250, Revision 2, dated 5-04-84 and Master Drawing List No. 92196, Revision B, dated 5-04-84 and/or later FAA Approved revisions of the above data (14 Volt System).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89207, dated 6-29-83 is required and/or later FAA Approved revisions of the above supplement.

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

,>v^^xz^ ^>i^z'^^,4^yi<>^W^ S&dmvnjA/*a£>r-*f&* 4-20-83 *&,~**u*J: 6-20-84, Revision 1 6-29-83 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

This crrtifuo.lt may bt transftmd in accordant* with FAR 21.47.

FAA tout tl 10-J (IO-6»)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, Slate, and ^IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and <7P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- June 20, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f8/1b/f81bf435c71fe896570dc8580185378d58e5000608af3d8a4678430a57ed2d84)

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