Aerospace Filtration Systems has obtained an FAA supplemental type certificate (STC) to install its inlet barrier filter (IBF) on the Bell 430. AFS, a division of Donaldson Company’s Aerospace & Defense group, is based in St. Louis, Mo. The IBF system features sealed intake plenum on each engine intake, an intake bypass system, compact cockpit switch and integral filter maintenance aid, which enables inspections between scheduled cleanings.
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