# STC SR09451RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Donaldson Company Inc., United States
- Description: Installation of Aerospace Filtration Systems (AFS) Engine Inlet Barrier Filter (IBF) System.
- Applied: January 18, 2005
- Status date: November 15, 2017
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/76/72/76722d4d2d48c5c4a69ba542d170d35346a965ff867047a48639e4a69eca52dc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/91EC517967B0D6548625889A00240591.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09451RC

## ADs that name it (0)

None.

## Approved models (1)

- Bell Helicopter Textron (Canada) 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))

## 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.

Donaldson Company, Inc.

SR09451RC 17891 Chesterfield Airport Road Chesterfield, Missouri 63005

Federal Aviation (See Continuation Sheet for specific certification requirements) -- H2SW Bell Helicopter Textron Canada 206B : Installation of Donaldson Company, Inc. Engine Inlet Barrier Filter (IBF) System in accordance with AFS Drawing Number 109000, Revision A, dated August 16, 2005, or later FAA approved revision and installation procedures AFS-BH206B-IBF-KIT-IP, Revision A, dated October 25, 2005, or later Federal Aviation Administration (FAA) approved revision.

1. Instructions for Continued Airworthiness (ICA) contained in the Donaldson Company, Inc. Document Number AFS-BH206B-IBF-KIT-ICA are required.

2. Donaldson Company Inc. Rotorcraft Flight Manual Supplement (RFMS) number AFS- BH206B- IBF-KIT-FMS initial release dated December 14, 2005, or later FAA approved revision is required.

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

4. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall givethe other person written evidence of thatpermission.

: January 18, 2005 : December 14, 2005 : February 21, 2017, November 15, 2017

Roy E. Boffo III (Signature) Manager, Propulsion & Program Management Section Chicago ACO Branch

(Title)

## Every issue (2)

- November 15, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/76/72/76722d4d2d48c5c4a69ba542d170d35346a965ff867047a48639e4a69eca52dc)
- December 14, 2005: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/b8/0b/b80b22cab5b0ad0e8f306502e0e7813dfb84b5a3ac7ba4dbdf07bdd24d1b3bdb)

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