# STC SA5138SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 pitch stabilization system, Model ST-128 with optional autotrim system.
- Applied: November 1, 1982
- Status date: March 19, 1997
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1EA](https://openairdocs.org/tcds/A1EA)
- Certificate PDF: https://openairdocs.org/files/sha256/5a/6a/5a6a78c1a989a4a112f9bae0b650f483803ac552c2801067b47849517edd9468
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5D09F7D68A4F363785256CC2001226E9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5138SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-30 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))
- Piper Aircraft Inc. PA-39 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))

## 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.

of ®rzmsp0rtatum - <Afafa:tt0tt .Ahmtmatratwm Okrttftcate SA5138SW-D S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 A1EA PIPER pA-30 AND PA-39 Installation of S-TEC System 60 Pitch Stabilization System, Model ST-128, with Optional Autotrim System according to Bulletin No. 228, Revision 1, dated 3-11-97 and Master Drawing List No. 92150, Revision A, dated 3-1 1-97 or later FAA Approved revisions of the above data (14 Volt System).

1 . Also Eligible On The Above Models When Modified Per STC S A727SW (Tip Tanks).

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

11-01-82 2-28-83 tfe JaAAflt ofrfama/AAad'teMaiH in yfitSantff @afr aauHteAi/.- 3-19-97, Revision 1 <%" William J. Thomas DAS Staff Coordinator. DAS 5 SW (Title)

um - Jf«o«r«I fcttftcate SA5138SW-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 89166, dated 2-28-83 or later FAA Approved revisions of the above supplement.

3. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 89166, Revision 1, dated 3-19-97 is required for Piper Models PA-30 and PA-39 And The Above Models When Modified Per STC SA727SW (Tip Tanks) or later FAA Approved revisions of the above supplement.

4. 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 <7P 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):

Signature of grantor (In ink):

U.S. GOVERNMENT PRINTING OFFICE : 1966 OF —205-57S

## Every issue (1)

- March 19, 1997: Amended, Current. [certificate](https://openairdocs.org/files/sha256/5a/6a/5a6a78c1a989a4a112f9bae0b650f483803ac552c2801067b47849517edd9468)

---
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.