# STC SA5166SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC yaw damper system, Model ST-141.
- Applied: June 1, 1983
- Status date: July 27, 1987
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- Certificate PDF: https://openairdocs.org/files/sha256/94/5f/945fd348c9af786ee43388c1b1f6112b26f99faa56d4cb80699138fcbd8b0b98
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D21BFBB97D7F1AC686257EC9005281CD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5166SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-220T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

## 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.

Hnitri 3tatti of anrrica department of transportation —federal atriation administration Supplemental 'Cgpe Certificate SA5166SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 'JtfnA A*^^ 23 *d4/ie rederai Aval tl on Cfrvguna* JvccU&c/ ——• I/yfit ~fae*£fuM&'<Sut>rn0cr- A 7 S 0 PIPER PA-34-200T AND PA-34-220T Installation of S-TEC Yaw Damper System, Model ST-141, according to Bulletin No.

241, Revision 2, dated 7-13-87 and Master Drawing List No. 92199, Revision B, dated 7-13-87 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 89212, dated 6-8-83 is required and/or later FAA Approved revisions of the above supplement.

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

.*z^3/C<^.a^2/yi<>»H£>^x*^^.«v^<^^-^^ J£e*^nt*t*a£if>n'daZ&^J>£&er**>tte^AZa&UAA£d, 6-1-83 QLu*****^: 7-27-87, Revision 1 6-8-83 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW___

This certificate may kt transftmJ in tceorjana urith FAR 21.47.

rAAhMM II IO-2(tO-Al)

United £tatts of awrira Btpartmtnt of transportation— .federal aoiation administration Supplemental ICgpe Certificate(Continuation &heet) SA5166SW-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 89212-1, dated 7-27-87 is required and/or later FAA Approved revisions of the above supplement.

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

ny alteration of this certificate is punishable by a fine of not exceeding Sl,000, or imprisonment not exceeding 3 years, or h AA FORM Biio-2-1 (10-69) This certificate may be transferred in accordance with I'AK ;'/ 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 QP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ^IP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- July 27, 1987: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/94/5f/945fd348c9af786ee43388c1b1f6112b26f99faa56d4cb80699138fcbd8b0b98)

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