# STC SA4-183

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: FTG, Inc., United States
- Description: Installation of VIP P/N 101-79 engine mount.
- Applied: February 20, 1957
- Status date: May 13, 2022
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-815](https://openairdocs.org/tcds/A-815)
- Certificate PDF: https://openairdocs.org/files/sha256/2b/56/2b561110c7ee1b3cdc0012e7cb29d80eaf6449a23615cb487356e4c803190536
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151172643520230110161556.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-183

## ADs that name it (0)

None.

## Approved models (1)

- Viking Air Limited DHC-3 ([TCDS A-815](https://openairdocs.org/tcds/A-815))

## 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 of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number: SA4-183 The STC’ s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder.

FAA Form 8110-2 (4/22) SUPERSEDES PREVIOUS EDITION Page 1 of 2

Part 10&3 of the Federal Aviation Regulations.

dated November 1, 1949

Description of Type Design Change: Installation of VIP Part No. 101-79 engine mounts. (Replaces MB Part No. 100879 engine mount.)

Limitations and Conditions: This approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of these other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

Date of Application: February 20, 1957 Date Reissued: Aug.15,1986; Sept.16,1986; May 13, 2022 Date of Issuance: February 25, 1957 Date Amended: April 6, 1964 By Direction of the Administrator

Title: Aviation Safety Manager, Technical & Administrative Support Section, Los Angeles ACO Branch

This certificate issued to: FTG, Inc.

12750 Center Court Drive S Suite 280 Cerritos, CA 90703 Original Product Type Certificate Number: A-815 Make: DeHavilland Model: DHC-3

United States of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number: SA4-183 The STC’ s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder.

FAA Form 8110-2 (4/22) SUPERSEDES PREVIOUS EDITION Page 2 of 2

## Every issue (1)

- May 13, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/2b/56/2b561110c7ee1b3cdc0012e7cb29d80eaf6449a23615cb487356e4c803190536)

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