Fatigue On The Part Of Mechanic Also A Contributing Factor
The NTSB said Tuesday it has determined that a loose locking nut in a rotor mechanism was the probable cause of an accident near Lake Mead, NV, that resulted in the fatal injury of all five people aboard a Eurocopter AS350-B2 helicopter, operated by Sundance Helicopters, Inc., on a sightseeing trip. The aircraft went down in mountainous terrain about 14 miles east of Las Vegas, NV.