# STC SA4177SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC manual electric trim system, Model ST-022.
- Applied: July 28, 1980
- Status date: August 14, 1980
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/4f/f5/4ff56c68e2ccf02208b3465ecb4bb2bf21fc8339b8db985b3d665e1ab80fb2bf
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/988D8C1B50661C2685256CC2000E3A1D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4177SW

## ADs that name it (0)

None.

## Approved models (2)

- Mooney International Corporation M20F ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney International Corporation M20J ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## 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.

United States or amttto Btpartmtnt of transportation —federal atriation administration Supplemental 'Cgpe Certificate * sleau6a&&nA'.

iSUtm&ev SA4177SW Project A4957SW-DS CJA-213 S~TEC Corporation Rt. 3, Bldg. 946 Woltars Industrial Complex Mineral Walls, TX 76067 4wJufade&j:cim^wJ&e'^<dbtvt4^ jA&*it*wc^^ 3 Civil Air 2A3 M20F, S/N 22-1246, 22-1306 «nd on, M20J Installation «f S-TEC Manual Elaetrie Tria Systwn Modkil ST-022 according to Bull* tin Ho. 115 dated 7/25/80 and Ma 8 tar Drawing Li«t No. 9215 4ata4 7/25/80, or latov FAA approval eavitiom. (14 Volt Syatan) Pilot's Oparating Handbook and FAA Approvad Airplana Flight Manual Supplamntt P/N 8913 datad August 14, I960, is r.quirad.

compatibility of thi« modification with othar pravioualy approvad vodifications it ba dataxvinad by tha installer.

28, 1980 August 14, 1980 (Signature^-Js^--~^~

7) Don P. uatson (/ Chief, Engineering and Manufacturing Branch (Title)

**FAA FOIM 81 10-2 (10-68)**

## Every issue (1)

- August 14, 1980: Issued, Current. [certificate](https://openairdocs.org/files/sha256/4f/f5/4ff56c68e2ccf02208b3465ecb4bb2bf21fc8339b8db985b3d665e1ab80fb2bf)

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