# STC SR09639RC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: RSG AeroDesign LLC, United States
- Description: Installation of a Thommen Air Data Display
- Applied: September 14, 2012
- Status date: August 1, 2013
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H7EU](https://openairdocs.org/tcds/H7EU)
- Certificate PDF: https://openairdocs.org/files/sha256/59/f1/59f10f250226752e9f3581bef244ee2c715879e2ac64e61eb07a8fc2fd5efb5f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6BA405D14DF1878886257BC2006A7835.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR09639RC

## ADs that name it (0)

None.

## Approved models (1)

- Agusta S.p.A. A109S ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))

## 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(10-68) PAGE 1 of 2 PAGES Number: SR09639RC This certificate issued to RSG AeroDesign, LLC 3900 Falcon Way West Fort Worth, Texas 76106 Part 27 of the Federal Aviation Regulations.

Original Product – Type Certificate Number : H7EU Make: Agusta S.p.A.

Model: Model A109S Description of Type Design Change:

Installation of a Thommen Air Data Display in accordance with Master Document List, Document Number 00-109-31- 001, Revision E, dated May 14, 2013, or later FAA approved revision. Rotorcraft Flight Manual Supplement, Document Number 19-109-31-001, Revision NC, dated July 30,2013, or later FAA approved revision is required for this installation. Instructions for Continued Airworthiness, Document Number 16-109-31-001, Revision A, dated December 6, 2012, or later revision is required.

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: September 14, 2012 Date reissued:

Date of issuance: August 1, 2013 Date amended:

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

GH: O:\WP\STC\RSG AeroDesign\SR09639RC.xml

Project #: ST03472RC-R PE : GH ASW-170

## Every issue (1)

- August 1, 2013: Issued, Current. [certificate](https://openairdocs.org/files/sha256/59/f1/59f10f250226752e9f3581bef244ee2c715879e2ac64e61eb07a8fc2fd5efb5f)

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