# STC SA5389SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC manual electric trim system, Model ST-282.
- Applied: March 13, 1985
- Status date: April 25, 1985
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-806](https://openairdocs.org/tcds/A-806)
- Certificate PDF: https://openairdocs.org/files/sha256/00/e2/00e2de4c4c771d75ca12d314051079178f58555fce4d799baebfcf233c727e6f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/88FB157CC4BDC10085256CC2001228CA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5389SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Viking Air Limited DHC-2 Mk.I ([TCDS A-806](https://openairdocs.org/tcds/A-806))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Writed Starts of Sinnice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA538954-0 This certificate issued to: . S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Fard 10 of the Civil Air Regulatuns Original Product - Type tiertificate Aumber A-806 Make DEHAVILLAND Mudel DHC -2 MK. I Description of Type Design Change: .

Installation of S-TEC Manual Electric Trim System, Model ST-282, according to Bulletin No. 382, Revision 1, dated 4-17-85 and Master Drawing List No. 92320, Revision A, dated 4-17-85 and/or later FAA Approved revisions of the above data (28 Volt System).

1, Eligible on DeHavilland DHC-2 MK, I in Landplane, Floatplane or Amphibian Configuration.

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89599-1, dated 4-25-85 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.

Date of Application: 3-13-85 Date Reissued: 4-25-85, Revision 1 Date of Issuance: 3-25-85 Date Amended:

DERAL AVIATIO By Direction of the Administrator (Signature) COMINISTRAIO DAS Staff Coordinator, DAS 5 SN Harold W. Holdeman (Title)

47.

**FAX FORM 8110-2 (10-68)**

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 streel) ( City, State, and ZIP code ) Extent of Authority (if licensing agreement):

Date of Transfer: _ Signature of grantor (In ink):.

U.S. GOVERNMENT PRINTING OFFICE : 1966 OF-205-579

## Every issue (1)

- April 25, 1985: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/00/e2/00e2de4c4c771d75ca12d314051079178f58555fce4d799baebfcf233c727e6f)

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