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U.S. Army, RAF ground Chinooks

Staff August 10, 1999
The U.S. Army and the U.K. Royal Air Force grounded their fleets of Boeing CH-47 Chinook helicopters late Friday, following discovery of cracked transmission gears in a RAF Chinook. The RAF CH-47D was being overhauled at a depot when workers discovered cracks in the gear that passes turbine engine...

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