# STC SA6031SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 two axis automatic flight guidance system, Model ST-151, with optional automatic electric trim system.
- Applied: July 8, 1985
- Status date: October 12, 1990
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A3](https://openairdocs.org/tcds/1A3)
- Certificate PDF: https://openairdocs.org/files/sha256/50/2d/502d26593a022b1c3e8345340f3f79803ef2a6f97fa1e18a0f2e431f270c1a3a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EC6C0FC473D5234E85256CC200569DFD.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA6031SW-D

## ADs that name it (0)

None.

## Approved models (3)

- Alexandria Aircraft LLC 17-30 ([TCDS 1A3](https://openairdocs.org/tcds/1A3))
- Alexandria Aircraft LLC 17-31 ([TCDS 1A3](https://openairdocs.org/tcds/1A3))
- Alexandria Aircraft LLC 17-31TC ([TCDS 1A3](https://openairdocs.org/tcds/1A3))

## What the certificate says

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

Ariad Sata of A cia Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A60315N-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 7606/ conlifes that the changs in the lyrs design for the following product with the limilations and condilions shonfor as specified hoveon meels the sinvorhiness requirements of Pant 3 of the CiVil Air Rogulations Original Product - TypoPortificato Numbon: 1A3 Make: BELLANCA Model: 17-30, 17-31 AND 17-31TC Description of Type Design Change:

Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-151, with Optional Automatic Electric Trim System according to Bulletin No. 251, Revision 6, dated 9-27-90 and Master Drawing List No. 92185, Revision F, dated 9-27-90 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 89608, dated 7-31-85 is required for Bellanca Models 17-30, 17-31, and 17-31TC and/or later FAA Approved revisions of the above supplement.

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

Date of Application: 7-08-85 Deloressed: 10-12-90, Revision 1 Tiale of issuoncs. 7-31-85 Dals arcorded:

FEDERAL AVIATION (Signature) TOMINIST RAN O Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

17.

PAS Foon 8110-2 (10-68)

Aniced Stares of Ancrica Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA6031SW-D, Revision 1 Limitations and Conditions: (con't.)

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89608-1, dated 10-12-90 is required for Bellanca Models 17-30, 17-31, and 17-31TC and/or later FAA Approved revisions of the above supplement.

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

69) This certificate may be transferred in accordance with 1':l1l :1.t7 PAGE 2 OF 2 PAGES

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and streel) (Ciry, State, and 2IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and sireel;

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

Signature of grantor (In ink):

..eron. 267-090

## Every issue (1)

- October 12, 1990: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/50/2d/502d26593a022b1c3e8345340f3f79803ef2a6f97fa1e18a0f2e431f270c1a3a)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.