# STC SR03404CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Wysong Enterprises Inc, United States
- Description: Installation of structural provisions for EMS accessories
- Applied: August 7, 2014
- Status date: November 26, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/08/52/0852425b9e12e99c36028b121fde5db02284d40d9952fd99d62a7c030a61da02
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5C14A0C7BFC5E05886257DA500579E41.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR03404CH

## ADs that name it (0)

None.

## Approved models (1)

- Bell Helicopter Textron Canada Limited 407 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))

## 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.

Part 27 of the Federal Aviation Regulations. (See Type Certificate Data Sheet No. H2SW for complete certification basis)

Installation of structural provisions for EMS accessories in accordance with Wysong Installation Drawing List, Report No.

WE10010, Revision A, dated October 22, 2014, or later FAA approved revisions.

1. The appropriate FAA Accepted Instructions for Continued Airworthiness, as identified in Wysong Installation Drawing List, Report No. WE10010, Revision A, dated October 22, 2014, or later FAA accepted revision is required for this modification. 2. The installer must determine whether this design change is compatible with previously approved modifications. 3. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Wysong Enterprises, Inc 2695 Highway 75 Blountville, TN 37617 H2SW Make : Bell Helicopter Textron Canada Limited Model : 407 Date of application : August 07, 2014

Date of issuance : November 26, 2014

(Signature) Karol Mordasiewicz Manager, Airframe & Administrative Branch Chicago Aircraft Certification Office

(Title)

Original signed by:

Gregory J. Michalik

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

Number

## Every issue (1)

- November 26, 2014: Issued, Current. [certificate](https://openairdocs.org/files/sha256/08/52/0852425b9e12e99c36028b121fde5db02284d40d9952fd99d62a7c030a61da02)

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