Brazil's ANAC Certifies AFS Inlet Barrier Filter for AgustaWestland AW139 Helicopters

Donaldson's AFS receives STC from Brqazil's ANAC for inlet barrier filter for AgustaWestland AW139.


St. Louis, MO, August 23, 2010 - Aerospace Filtration Systems, Inc. (AFS), a wholly owned subsidiary of Donaldson Company, Inc. (NYSE:DCI) and a division of the Aerospace & Defense group, has received a Supplemental Type Certificate (STC) approval from Brazil's National Civil Aviation Authority (ANAC) for an Inlet Barrier Filter (IBF) system for the AgustaWestland AW139.

A welcome equipment addition to this versatile aircraft, this new IBF prevents engine damage in adverse environments. South American AW139 operators now have the opportunity to realize the proven operating cost reductions and increased operational capabilities an IBF offers.

Donaldson Inlet Barrier Filter systems are already in use by AW139 operators worldwide in corporate, rescue, firefighting and utility missions.

Donaldson Aerospace & Defense partnered with AgustaWestland, a Finmeccanica Company, to ensure the design of a well engineered system that addressed the AW139's operational requirements. After successful joint development of the IBF for the AW119 series, Donaldson's engineering department worked closely with AgustaWestland's technical team to refine the AW139 IBF design.

The new AW139 IBF system features low profile conformal fore and aft fairings with dual filter assemblies mounted on the existing engine doors, creating a sealed intake plenum. As with all certified Donaldson IBF's, the AW139 system includes an alternate inlet air bypass system. This emergency bypass capability is an important IBF feature and is not included in most traditional sand filters and particle separators. A simple compact cockpit switch allows indication and activation of the bypass system. An integral Filter Maintenance Aid also allows for on-condition inspections, pre- and post-flight, to assist in mission planning and visual inspection of filter condition.

Providing the most comprehensive line of IBF solutions, Donaldson Aerospace & Defense is the industry leader in the design, development and manufacture of high-performance engine IBF systems for commercial and military propulsion systems.

Through their Donaldson St. Louis location, Donaldson provides certified IBF solutions for the following:

· AgustaWestland A119 Koala, AW119Ke and AW139

· Bell 205A1, 206B, 407, 206L-3/4, 206L-1(C30), 429 and 430

· Eurocopter EC130, AS350 B/BA/B1/B2/B3, AS350's with Soloy or Heli-Lynx Honeywell engine conversions

· MD Helicopters MD 369H Series, MD 500D/E/F and MD 900/902

IBF solutions for the AgustaWestland AW109 Power and Grand as well as the Bell 206L are currently in development.

To learn more about the Donaldson Aerospace & Defense, visit www.donaldson.aero or www.afs.donaldson.com.

About Donaldson Aerospace & Defense

Donaldson Aerospace & Defense is a leading worldwide provider of filtration systems for the aerospace and defense industry. Our filtration solutions protect fixed wing aircraft, rotorcraft, military ground vehicles, electronic equipment, space vehicles, missiles, military shipboard systems, and amphibious vehicles. We are committed to advancing filtration technology, providing quality products and prompt customer service. Our group serves customers from sales, engineering, and manufacturing locations around the world.

About Donaldson Company

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