Accidents
NTSB Faults Mx in Fatal Sundance Helicopter Crash

On Tuesday, the NTSB faulted maintenance performance and procedures at Las Vegas, Nev.-based air-tour operator Sundance Helicopters as the probable cause of the Dec. 7, 2011 crash of an AS350B2 that killed the pilot and four passengers near the Hoover Dam. The 1988 helicopter was originally manufactured as an AS350B and had accumulated 25,216 hours since new. Total time on the rental engine was 7,400 hours.

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