# STC SR02057NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Carson Helicopters, Inc, United States
- Description: Upgrade of the S6135-20600 series main gearbox by replacing input free-wheeling units in accordance with Carson drawing.    IFWU INSTL Carson S-61 No. CHI-R-001, no revision, dated 12-15-04 and Carson Installation Instructions Report CHI-R-INSTALL, no revision, dated 12-14-04.
- Applied: January 24, 2004
- Status date: February 10, 2005
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 1H15](https://openairdocs.org/tcds/1H15), [TCDS H2EA](https://openairdocs.org/tcds/H2EA)
- Certificate PDF: https://openairdocs.org/files/sha256/f6/34/f634a15ea0afc9ffc4bb393ce2a99e2949dfb5e30492cb35c3d10537a9469dc9
- Approved model list and other attachments: [SR02057NYAML.pdf](https://openairdocs.org/files/sha256/b1/09/b109ac58f4b735dbf2361d7ef02e3f07125cb84905b4167acdc230b073ff6770)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D5DD090BD6F9D36D86256FDA006D844C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR02057NY

## ADs that name it (0)

None.

## Approved models (4)

- Sikorsky Aircraft Corporation S-61A ([TCDS H2EA](https://openairdocs.org/tcds/H2EA))
- Sikorsky Aircraft Corporation S-61L ([TCDS 1H15](https://openairdocs.org/tcds/1H15))
- Sikorsky Aircraft Corporation S-61N ([TCDS 1H15](https://openairdocs.org/tcds/1H15))
- Sikorsky Aircraft Corporation S-61NM ([TCDS 1H15](https://openairdocs.org/tcds/1H15))

## 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.

952 Blooming Glen Road Perkasie, Pa 18944 USA

Part * of the * Federal Aviation Regulations.

* See attached FAA Approved Model List (AML) * No. SR02057NY for list of approved aircraft models and applicable airworthiness regulations

Upgrade of the S6135-20600 series main gearbox by replacing input free-wheeling units in accordance with Carson drawing.

IFWU INSTL Carson S-61 No. CHI-R-001, no revision, dated 12-15-04 and Carson Installation Instructions Report CHI-R- INSTALL, no revision, dated 12-14-04.

1. A copy of this certificate and the FAA Approved Model List (AML) No. SR02057NY, issued February 10, 2005 or later FAA approved revisions, must be maintained as part of the permanent records for the modified aircraft.

2. 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.

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

Date of application : January 24, 2004

Date of issuance : February 10, 2005 Date reissued:

( Signature) Vito A. Pulera Manager New York Aircraft Certification Office

(Title)

### SR02057NYAML.pdf

FAA APPROVED MODEL LIST (AML) No. SR02057NY

**CARSON HELICOPTERS INCORPORATED**

FOR

Upgrade of the S6135-20600 series main gearbox by replacing input free-wheeling units (IFWU)

Issue Date: February 10, 2005

**PART REGULATION MAKE MODEL ORIGINAL**

**PRODUCT TYPE**

**CERTIFICATE**

**DATA SHEET AML**

AMENDMENT DATE 7 Civil Air Sikorsky S-61L, S-61N, S- 61NM

1H15

N/A

21.25 (a)(2) Federal Aviation Sikorsky S-61A Restricted Category H2EA

N/A Page 1 of 1

FAA Approved:________________________________________ Vito A. Pulera Manager, New York Aircraft Certification Office

## Every issue (1)

- February 10, 2005: Issued, Current. [certificate](https://openairdocs.org/files/sha256/f6/34/f634a15ea0afc9ffc4bb393ce2a99e2949dfb5e30492cb35c3d10537a9469dc9), [SR02057NYAML.pdf](https://openairdocs.org/files/sha256/b1/09/b109ac58f4b735dbf2361d7ef02e3f07125cb84905b4167acdc230b073ff6770)

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