# STC SR00446AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Bell Helicopter Textron Inc., United States
- Description: Installation of Flitestep.
- Applied: September 3, 1993
- Status date: February 1, 2011
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/0d/a6/0da60be1c8916585863367c30604a920d9fb4fa200c9c39d91e40e2e3c38cc6b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5AFAB3CC7B27632F86257C43007075AA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00446AT

## ADs that name it (0)

None.

## Approved models (6)

- Bell Helicopter Textron Inc. 205A ([TCDS H1SW](https://openairdocs.org/tcds/H1SW))
- Bell Helicopter Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW))
- Bell Helicopter Textron Inc. 205B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW))
- Bell Helicopter Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))
- Bell Helicopter Textron Inc. 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))
- Bell Helicopter Textron Inc. 412EP ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SR00446AT This certificate issued to: Bell Helicopter Textron, Inc.

441 Industrial Park Rd.

Piney Flats, TN 37686 Part 78 29 of the Civil Air & Federal Aviation Regulations.

Original Product - Type Certificate Number: HISW; HASW Make: Bell Helicopter Textron, Inc.

Model: 205A, 205A-1, 205B, 212, 412, 412EP Description of Type Design Change:

Manufacture of Flitestep in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA93085, no revision, dated November 4, 1993, and installation per Report No. AA-93086, Revision A, dated February 21, 1994, or Report No. AA-97087, no revision, dated May 21, 1997, or later FAA approved revisions.

Inspection and Maintenance requirements are listed in Aeronautical Accessories, Inc. Report AA98049, no revision, dated December 23, 1998, or later FAA accepted revisions. This approval should not extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that interrelationship between this change and any of those other previously approved modifications will produce no adverse effect upon the airworthiness of that rotorcraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shallgive the other person written evidence of that permission.

Date of Application: September 3, 1993 Date Reissued: February 1, 2011 Date of Issuance: March 24, 1994 Date Amended: February 24, 1995, December 8, 1999 FEDERAL AVIATION By Direction of the Administrator Sen Fordie * (Signature) James A. Richmond, Acting Manager TOMNISTRATO Rotorcraft Certification Office Southwest Region (Title)

## Every issue (1)

- February 1, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0d/a6/0da60be1c8916585863367c30604a920d9fb4fa200c9c39d91e40e2e3c38cc6b)

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