# STC SR09589RC

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Bristow US LLC, United States
- Description: Installation of Single TDR-94D Transponder with Automatic Dependent Surveillance-Broadcast integrated with two (2) RTU-4200 or RTU-4210 Radio Tuning Units, and a Single GNSS position source
- Applied: December 10, 2009
- Status date: March 7, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS R00024BO](https://openairdocs.org/tcds/R00024BO)
- Certificate PDF: https://openairdocs.org/files/sha256/e7/13/e713eb1c7c334a73b288cf23051bba07b2af86a28f4c38f7e054920ff5bc2d6d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6A29EA02466BF71786257CF600597E2F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09589RC

## ADs that name it (0)

None.

## Approved models (1)

- Sikorsky Aircraft Corporation S-92A ([TCDS R00024BO](https://openairdocs.org/tcds/R00024BO))

## 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 Feaeral Aviation Administration Suppfemental Type Certificate

Num6er: SR09589RC

This certificate issued to: Bristow US LLC 4605 Industrial Drive New Iberia, LA 70560

Part 29 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: R00024BO

Sikorsky Aircraft Corporation S-92A

Installation of Single TDR-94D Transponder with Automatic Dependent Surveillance-Broadcast integrated with two (2) RTU-4200 or RTU-4210 Radio Tuning Units, and a Single GNSS position source in accordance with Bristow US LLC Master Installation List, Document No. S92TXP-MILO, Revision E, dated October 22, 2013, or later FAA approved revision. The original Sikorsky Flight Manual for Transponder Operation is valid for use with this Type Design Change approval. Bristow US LLC Instructions for Continued Airworthiness, Document No. ICA-S92-2010-01, Revision B, dated August 7, 2013, 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 : December 10, 2009 Date reissued: August 20, 2013

December 12, 2011

September 7, 2012; March 7, 2014

Signataure Scott A. Horn Title Manager, Rotorcraft Certification Office Southwest Region

FAA FORM 8110 - 2 (8/13) Page 1 of 2

## Every issue (2)

- March 7, 2014: Amended, Current. [certificate](https://openairdocs.org/files/sha256/e7/13/e713eb1c7c334a73b288cf23051bba07b2af86a28f4c38f7e054920ff5bc2d6d)
- August 20, 2013: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/e2/5d/e25d64f343fd5b27735b1dd7685957037d7a2529132901d29d9d969997f22217)

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