- ACCIDENT DETAILS
Date: December 07, 2011
Time: 16:45
Location: Near Henderson, Nevada
Operator: Sundance Helicopters Inc.
Flight #: ?
Route: Sightseeing
AC Type: Aerospatiale AS-350 B2 Ecureuil
Registration: N37SH
cn / ln: 2300
Aboard: 5   (passengers:4  crew:1)
Fatalities: 5   (passengers:4  crew:1)
Ground: 0
Summary: The touring helicopter on a sightseeing flight of the Las Vegas Strip and Hoover Dam, crashed into a mountainside between Lake Mead and Henderson.say Critical steering hardware was disconnected, and the bolt and other tiny parts that should have secured it weren't found on the scene. Records show the mechanism was overhauled the day before but passed multiple inspections on the day of the crash. Inadequate maintenance of the helicopter, including the improper reuse of a degraded self-locking nut, the improper or lack of installation of a split pin and inadequate post maintenance inspections which resulted in the in-flight separation of the servo control input rod from the fore/aft servo and rendering the helicopter uncontrollable.
Sources

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