The FAA issued an emergency AD following the uncontained fan disk failure on a GE CF34-3B1 on a RegionalJet. The FAA has identified an unsafe condition that is likely to exist or develop on certain other GE CF34-3 A1/-3B/-3B1 turbofan engines of this same type design. This AD requires a onetime visual and tactile inspection of certain areas of certain SN fan disks, within 20 engine flight hours after
receipt of this emergency AD. (FAA)

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