# STC SA4317SW

- 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-021 with optional autotrim system
- Applied: March 5, 1981
- Status date: June 17, 1982
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/3b/c0/3bc018eb8b528a2ecafc49c1b197a0845abd9380a8e05ed41b79fd13f2dce2ea
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/76ECE1B92606832C86257DFC00754DCE.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4317SW

## ADs that name it (0)

None.

## Approved models (3)

- Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## 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.

lirotcd grates of arnica Bepartmcnt of tonsportation—federal 2toiation administration Supplemental ICgpe Certificate SA4317SW S-TEC Corporation Rt. 4, Bldg, 946 Wolters Industrial Complex Mineral Wells, Texas 76067 ^&^yfy^wde&A<p#t'f<^^<n^ft>tCc>u>vn^Jwwctu^Mfi& ^-*y^*^&«£X«7«<>^xm<5<f^-<$i^<z«»w«>»'^i«^^ 3 j^J&e' Civil Air <Sleat&iadu>nA/.

~ " 1A15 Piper See Limitations and Conditions Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-021, with Optional Autotrim System according to Bulletin No. 124, Revision 5, dated 3-12-82 and Master Drawing List No. 9239, Revision E, dated 3-12-82 with Optional Flight Director Steering Horizon; or according to later FAA approved revision. (14 Volt System) See Continuation Sheet, page 2, of this STC.

: March 5, 1981 !3L&****u~t '.• 1/8/82; 6/17/82 Revision 2 March 26, 1981 on P. Watson Manager, Aircraft Certification Division (TitU)

This certificate may bt transferred in accordance with FAR 21.47.

FAA FotM 8110-2 (10-48)

flitted £tatu of amtrira Bcpartment of transportation— federal aoiation administration Supplemental t^pe Certificate(Continuation £heet) SA4317SW Revision 2 Limitations and Conditions:

1. Eligible on Piper Models PA-24 (PA- 24- 180), PA- 24-250, and PA- 24-260, S/N 24-4803 and Below (Except S/N 24-4783) and the above models when modified by STC SA4-1351, or STC SA4-1235 as applicable (Wing Tip Tanks)

2. FAA Approved Airplane Flight Manual Supplement P/N 8943 dated Karch 26, 1981, is required for Piper Models PA-24 (PA-24-180) and PA-24-250, S/N 24-2843 and Below; OR, Airplane Flight Manual Supplement P/N 8943-1 dated January 8, 1982, is required for Piper Models PA- 24- (PA- 24- 180), PA- 24-250 and PA- 24-260, S/N 24-4803 and Below (Except S/N 24-4783); OR, FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 8943-2 dated 6-17-82, is required for Piper Models PA-24 (PA- 24-180), FA-24-250, PA- 24-260, S/N 24-4803 and Below (Except S/N 24-4783) and the above models when modified in accordance with STC SA4-1351 or STC SA4-1235 as applicable (Wing Tip Tanks) with S-TEC System 60 Two Axis Automatic Flight Guidance System (with 0105-R9Roll Servo) installed.

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

FAA FORM 8110-2-1 (io-69) PAGE 2 OF 2 PAGES

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

Signature of grantor (In ink):

## Every issue (1)

- June 17, 1982: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/3b/c0/3bc018eb8b528a2ecafc49c1b197a0845abd9380a8e05ed41b79fd13f2dce2ea)

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