# STC SR00390NY

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sikorsky Aircraft Corporation, United States
- Description: Installation of carbon fiber floor panels.
- Applied: October 5, 1995
- Status date: December 17, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/05/d0/05d06ce28f58ce5953641ffb5cb242627d2a9573ea9c0e1e866d8ab5ce7467c9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4154DED960F0012B86257DB8005133DF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00390NY

## ADs that name it (0)

None.

## Approved models (1)

- Bell Helicopter Textron Inc. 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))

## 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 (5/14) Page 1 of

Part of the

Signature

Title SR00390NY Sikorsky Aircraft Corporation 6900 Main Street Stratford, CT 06615 Federal Aviation Regulations.

1. Installation of carbon fiber floor panels manufactured in accordance with Keytech Manufacturing Drawing List, Report Number MDL95-81, dated January 16, 1996.

2. Floor panels must be installed in accordance with Keytech Installation Drawing List, Report Number IDL95-81, dated January 16, 1996.

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Gaetano Sciortino Manager New York Aircraft Certification Office Bell 412 October 1, 2011, December 17, 2014 October 05, 1995 January 22, 1996 H4SW 2

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

2 SR00390NY

## Every issue (2)

- December 17, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/05/d0/05d06ce28f58ce5953641ffb5cb242627d2a9573ea9c0e1e866d8ab5ce7467c9)
- October 1, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/7a/c5/7ac525dbb5695a18cd339600288be0a5f1d4b71e135268ed55e173e7148dc004)

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