# STC SR02772CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Donaldson Company Inc., United States
- Description: Installation of an Inlet Barrier Filter (IBF) System in accordance with Aerospace Filtration Systems, Inc. Installation-IBF System Drawing No. 122000-010, Revision B, dated September 28, 2009, or later FAA Approved revision.
- Applied: September 11, 2008
- Status date: November 21, 2017
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS R00002RD](https://openairdocs.org/tcds/R00002RD)
- Certificate PDF: https://openairdocs.org/files/sha256/91/39/91394feffff63854a6b7a01be77b8c5cc3fa02e183eff7817bab59de52427eae
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FE82F84DA4275C938625889A002313B4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR02772CH

## ADs that name it (0)

None.

## Approved models (2)

- Agusta S.p.A. AB139 ([TCDS R00002RD](https://openairdocs.org/tcds/R00002RD))
- Agusta S.p.A. AW139 ([TCDS R00002RD](https://openairdocs.org/tcds/R00002RD))

## 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.

SR02772CH Donaldson Company, Inc.

17891 Chesterfield Airport Road Chesterfield, MO 63005

29 Federal Aviation See Type Certificate Data Sheet R00002RD for complete certification basis.

R00002RD Agusta S.p.A.

AB139, AW139

Installation of an Inlet Barrier Filter (IBF) System in accordance with Donaldson Company, Inc. Installation-IBF System Drawing No. 122000-010, Revision B, dated September 28, 2009, or later FAA Approved revision.

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

2. FAA Approved Aircraft Flight Manual Supplement, AFS-AW139-IBF-FMS, Revision IR, approved on October 30, 2009, or later FAA Approved revision, is required.

3. Instructions for Continued Airworthiness, AFS-AW139-IBF-ICA, Revision IR, dated June 30, 2009 or later FAA Approved revision is required.

4. 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.

...End...

September 11, 2008

November 2, 2009 May 26, 2011, November 21, 2017 Roy E. Boffo III (Signature) Manager, Propulsion & Program Management Section Chicago ACO Branch (Title)

## Every issue (3)

- November 21, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/91/39/91394feffff63854a6b7a01be77b8c5cc3fa02e183eff7817bab59de52427eae)
- May 26, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/ab/e5/abe5d83da2118c09e21b3da430c9e17e85b1e1abd7c22e719b898d40f5482bb9)
- November 2, 2009: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/ad/4c/ad4cf811e10ebda9d7dec5ad12b1435e34f668c8f9f8d81acc1cae983d1bd2d1)

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