# STC SA6091SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC yaw damper system Model ST-108.
- Applied: September 29, 1986
- Status date: October 14, 1986
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A29CE](https://openairdocs.org/tcds/A29CE)
- Certificate PDF: https://openairdocs.org/files/sha256/1a/b7/1ab7ab9b5f1f376d8ddc241cf6f368de2bc6c66655016477b5eeab4f80bc569e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BEC968105F8C984885256CC200569E88.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA6091SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company 76 ([TCDS A29CE](https://openairdocs.org/tcds/A29CE))

## 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.

timtrd $tatti of aotrica Bepartmcnt of TCransportanon —-federal atriation administration Supplemental t:j)pe Certificate <yi<umvevt' SA6091SW-D S-TEC Corporation Rt. 4, Bldg. 946 Welters Industrial Complex Mineral Wells, TX 76067 o* *< ^^^ 23 *^ /A* Federal Aviation iaAi/a&fnA A29CE BEECH 76 ^Z-^e^trt^t/^n. *x *l//yfie _/ *e&Mn 'dsufrupc' :

Installation of S-TEC Yaw Damper System, Model ST-108, according to Bulletin No.

211, Revision 2, datea 9-25-86 and Master Drawing List No. 92115, Revision B, dated 9-25-86 and/or later FAA Approved revisions of the above data (28 Volt System) .

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89130-1, dated 10-14-86 is required for Beech Model 76 and/or later FAA Approved revisions of the above supplement.

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

$Z£&nvniff 9-29-86 10-14-86 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW

Tkii ccrtifitaie may bt truiajtmd m •ccortuut with FAR 21.47.

FAA fo*M tl 1O-2(1O-«t)

1 INSTRUCTIONS: The transfer f ndo«ement below may be u,ed «o n<xify the appropriate FAA Kegion.l Office of the transfer of thu Supptemenul Type Certificate.

The FAA will reiuuc the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) ——————-————————— (Address of transferee) -———————-——,.vto*rW*-> from (Name of grantor) (Print or type).

(Address of grantor) iXiimkn ml Ural) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- October 14, 1986: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1a/b7/1ab7ab9b5f1f376d8ddc241cf6f368de2bc6c66655016477b5eeab4f80bc569e)

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