# STC SR09550RC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petroleum Helicopters Inc, United States
- Description: Installation cyclic grip assembly float switch guard
- Applied: December 10, 2008
- Status date: June 25, 2009
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE)
- Certificate PDF: https://openairdocs.org/files/sha256/6e/1e/6e1eb815f736fda4d444897e78c362edc4354d8fef523c5c93c4aef2a041abd1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DD9B62985259B28C862575E6003FC2F9.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09550RC

## ADs that name it (0)

None.

## Approved models (2)

- Sikorsky Aircraft Corporation S-76A ([TCDS H1NE](https://openairdocs.org/tcds/H1NE))
- Sikorsky Aircraft Corporation S-76C ([TCDS H1NE](https://openairdocs.org/tcds/H1NE))

## 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.

Number SR09550RC This certificate issued to

Part 29 of the Federal Aviation Regulations.

Description of Type Design Change: Installation cyclic grip assembly float switch guard in accordance with Master Drawing and Document List No. PHI-S76-DL-0014, Revision IR, Dated May 27, 2009, or later FAA Approved Revision. Instructions for Continued Airworthiness Document Number PHI-S76- ICA-0004, Revision IR, Dated May 21,2009 or later FAA Accepted Revision is required.

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer. 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.

Petroleum Helicopters, Inc.

P. O. Box 90808 Lafayette, LA 70509 H1NE Make : Sikorsky Model : S-76A, C

Date of application : December 10, 2008

Date of issuance : June 25, 2009

( Signature) Lance T. Gant, Manager Rotorcraft Certification Office Southwest Region

( Title)

**P/N ST3041RC-R PE ST ASW-170**

FAA Form 8110-2-1(10-69) Page 2 of 2

## Every issue (1)

- June 25, 2009: Issued, Current. [certificate](https://openairdocs.org/files/sha256/6e/1e/6e1eb815f736fda4d444897e78c362edc4354d8fef523c5c93c4aef2a041abd1)

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