# STC SA5155SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Information of S-TEC yaw damper system Model ST-145.
- Applied: March 18, 1983
- Status date: July 23, 1987
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A12SO](https://openairdocs.org/tcds/A12SO)
- Certificate PDF: https://openairdocs.org/files/sha256/91/59/915903660b439bca676fcb9806826f0bc1c5279e781adfa0357adae3338293c2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/66C7400686F3B1BD86257EC90055F777.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5155SW-D

## ADs that name it (0)

None.

## Approved models (4)

- Commander Aircraft Corporation 112 ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 112B ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 114 ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Corporation 114A ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))

## 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 gtatti of anmca Btpartmtnt of transportation —jfederal atriation Administration Supplemental "Cuje Certificate <slu#rweit' SA5155SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 ria* 23 Federal Air A 1 2 S 0

GULFSTREAM AMERICAN (ROCKWELL COMMANDER) 112, 112B, 114 AND 114A Installation of S-TEC Yaw Damper System, Model ST-145, according to Bulletin No.

245, Revision 1, dated 7-14-87 and Master Drwaing List No. 92192, Revision A, dated 7-14-87 and/or later FAA Approved revisions of the above data (14 VoltSystem).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89197, dated 4-1-83 is required and/or later FAA Approved revisions of the above supplement.

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

3-18-83 4-1-83 s£n&^ s£e*^nimji^^ S&drrvvnibfoater-MpJn*' 2L&-~**~J: 7-23-87, Revision 1 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW

This certificatt may bt traiafrmd in accordant* urtth FAR 21.47.

fAA FOMI «110-J (10-«()

tinted £tatts of amtrica Bepartmtnt of transportation— federal atrtation administration upplcmtntal t^pe Certificate(Continuation £heet) SA5155SW-D, Revision 1

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89197-1, dated 7-23-87 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.

A>n ultrratiiin nf this certificate is punishable by a fine of not exceeding Si,OOP, or imprisonment not exceeding 3 years, or bnth.

TAA FORM aiio-2-1 (1O-69) This certifcate may be transjerred in accordance with 1'AK -7 7" PAGE 2°F 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 ZIP 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 23, 1987: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/91/59/915903660b439bca676fcb9806826f0bc1c5279e781adfa0357adae3338293c2)

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