# STC SA8392SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 55/55X Two Axis automatic flight guidance system, Model ST-534
- Applied: May 13, 1994
- Status date: May 9, 2001
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/5c/c75cda975775969a1db49da26eca892e7c327c0dfdd7c3bf9deec1d381fe402f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1771BBCEFE442E8485256CC20058E779.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8392SW-D

## ADs that name it (0)

None.

## Approved models (5)

- The New Piper Aircraft Inc. PA-32-301 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- The New Piper Aircraft Inc. PA-32-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- The New Piper Aircraft Inc. PA-32R-301(HP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- The New Piper Aircraft Inc. PA-32R-301(SP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- The New Piper Aircraft Inc. PA-32R-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))

## What the certificate says

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

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA83925W-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Part 3 of the Cirit dir Requlations.

Original Product I ype Certificute Numter: A3SO Make: Piper Model: PA-32-301, PA-32-301I, PA-32R-301, and PA-32R-301T Description of Type Design Change:

Installation of S-TEC System 55/55X Two Axis Automatic Flight Guidance System, Model ST-534, according to Bulletin No. 634, Revision 2, dated 5-09-01 and Master Drawing List No. 92683, Revision B, dated 5-09-01 or later FAA Approved revisions of the above data (14 Volt System).

(See Continuation Sheet, Pages 2 and 3, a part of this STC.)

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of Application: 5-13-94 Date Reissued:

Date of Issuance: 5-17-94 Date Amended: 5-09-01 By Direction of the Administrator FEDERAL AVIATION mileki (Signature) TOMINSTRATIO Michael Keirnan DAS Staff Coordinator, DAS 5 SW (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA83925W-D Limitations and Conditions: (con't.)

FAA/DAS Approved Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual Supplement, P/N 891070, dated 5-17-94 is required for Piper Models PA-32-301 and PA-32-301T or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual Supplement, P/N 891071, dated 5-17-94 is required for Piper Models PA-32R-301 and PA-32R-301T or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891070, Revision 1, dated 5-09-01 is required for Piper models PA-32-301 and PA-32-301T for S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891071, Revision 1, dated 5-09-01 is required for Piper models PA-32R-301 and PA-32R-3011 tor S-TEC System 55/55X or later FAA Approved revisions of the above supplement.

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

FAA FOrm 8110-2-1 (10-69) page 2 of 2

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 ZIP code) Extent of Authority (if licensing agreement): _ Date of Transfer:

Signature of grantor (In ink): _ U.S. GOVERNMENT PRINTING OFFICE: 1966 OF-205-579

## Every issue (1)

- May 9, 2001: Amended, Current. [certificate](https://openairdocs.org/files/sha256/c7/5c/c75cda975775969a1db49da26eca892e7c327c0dfdd7c3bf9deec1d381fe402f)

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