# STC SR04321NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Alpine Aerotech LP, Canada
- Description: Installation of Deep Snow Kit
- Applied: February 28, 2019
- Status date: March 21, 2019
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS R00003RD](https://openairdocs.org/tcds/R00003RD)
- Certificate PDF: https://openairdocs.org/files/sha256/dd/01/dd01de575f69f3b5193c8e22cf5f96ff40ab8451046553d70b2999e1c45d82dd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/31EE904ABFA5FC398625857C00433AD8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR04321NY

## ADs that name it (0)

None.

## Approved models (1)

- Bell Helicopter Textron Canada Limited 429 ([TCDS R00003RD](https://openairdocs.org/tcds/R00003RD))

## 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.

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (1)

- March 21, 2019: Issued, Current. [certificate](https://openairdocs.org/files/sha256/dd/01/dd01de575f69f3b5193c8e22cf5f96ff40ab8451046553d70b2999e1c45d82dd)

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