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EMERGENCY AD FOR HELICOPTERS ROLLS-ROYCE/ALLISON TURBOSHAFT ENGINES
USA, EMERGENCY AIRWORTHINESS DIRECTIVE Aircraft Certification Service Washington, DC U.S. Department of Transportation Federal Aviation Administration DATE: October 3, 2001 2001-20-51 Send to all U.S. owners and operators of Rolls-Royce Corporation (formerly Allison Engine Company) models 250-C20, -C20B, -C20F, -C20R, -C20R/1, -C20R/2, -C20S, and -C20W turboshaft engines, and...
AVIONEWS - World Aeronautical Press Agency