# STC SR09638RC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Tech-Tool Plastics Inc, United States
- Description: Installation of Bubble Windows in the Bell Helicopter Textron Model 407 Crew Doors
- Applied: April 23, 2012
- Status date: July 2, 2013
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/80/e5/80e5ae8412f1bca293cd9786a91f412d51ffd93e5490e52073dc922251f043e8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ACFDB4614B1B076586257B9D006D7DB4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09638RC

## 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.

7800 Skyline Park Drive Fort Worth, TX 76108 Part 27 of the Federal Aviation Regulations.

Original Product – Type Certificate Number : H2SW

Make: Bell Helicopter Textron Canada Limited Model: 407 Description of Type Design Change:

Installation of Bubble Windows in the Bell Helicopter Textron Model 407 Crew Doors, manufactured in accordance with MDL TTP-407-MDL-002, Rev. D, dated April 28, 2013, or later FAA approved revision, and installed in accordance with installation instructions TTP-407-II-002, Rev. B, dated January 23, 2013, or later FAA approved revision. Instructions for Continued Airworthiness, Document Number TTP-407-ICA-002, Rev. -, dated December 12, 2012, or later revision is required for this installation.

1) Compatibility of this design change with previously approved modifications must be determined by the installer.

2) A copy of this certificate must be maintained as part of the permanent records for the modified aircraft. 3) If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application: April 23, 2012 Date reissued:

Date of issuance: July 2, 2013 Date amended:

(Signature) Scott A. Horn, Acting Manager Rotorcraft Certification Office Southwest Region (Title)

O:\WP\Tech Tool STC Doc.\STC SR09638RC 407 Bubble Window.docx

**PE APG P/N ST3428RC-R ASW-170**

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

## Every issue (1)

- July 2, 2013: Issued, Current. [certificate](https://openairdocs.org/files/sha256/80/e5/80e5ae8412f1bca293cd9786a91f412d51ffd93e5490e52073dc922251f043e8)

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