# STC SA4-493

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: FTG, Inc., United States
- Description: Installation of VIP P/N 104-1-C engine mount cores.
- Applied: April 16, 1958
- Status date: May 13, 2022
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: TCDS 2-548, [TCDS TC 785](https://openairdocs.org/tcds/TC%20785)
- Certificate PDF: https://openairdocs.org/files/sha256/dc/42/dc427e9178b91b4e4e25a115f4cf17f3700a2d7cb57cf7554f52382cbe1ce4f4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170445854920230110164448.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-493

## ADs that name it (0)

None.

## Approved models (2)

- Catalina Aircraft Trust LLC 28-5ACF ([TCDS TC 785](https://openairdocs.org/tcds/TC%20785))
- General Dynamics Corporation PBY-5A (Army OA-10A) (TCDS 2-548)

## 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: SA4-493 This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21. 47.

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

Part 3&4a of the Federal Aviation Regulations.

Description of Type Design Change: Installation of VIP Part No. 104-1-C engine mount cores (replacing P&W Part No. 41275 and Lord Part No. MR-26-1 and are equivalent to and interchangeable with P&W Part No. 70639 and Lord Part No. MR-26-1B engine mount cores) on aircraft equipped with P&W R-1830- 92 or S1C3-G engines.

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: April 16, 1958 Date Reissued: Aug. 15, 1986; Sept. 16, 1986; May 13, 2022 Date of Issuance: May 19, 1958 Date Amended: Sept. 11, 1962; April 6, 1964 By Direction of the Administrator Signature:

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: 2-548, 785 Make: Consolidated Vultee, Catalina Aircraft Trust Model: PBY-5A, 28-5ACF

United States of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number: SA4-493 This certificate may be transferred or made available to third persons by licensing agreements in accordance with 14 CFR 21. 47.

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/dc/42/dc427e9178b91b4e4e25a115f4cf17f3700a2d7cb57cf7554f52382cbe1ce4f4)

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