NTSB Identification: FTW01FA017. Accident occurred Saturday,
October 28, 2000 in E. Cameron 200, GM Probable Cause Approval
Date: 07/15/2002 Aircraft: Aerospatiale AS-350BA, registration:
N26WW Injuries: 1 Fatal.   The helicopter departed from a
helipad located on an offshore oil platform, and was 3 minutes
from landing at a refueling helipad on another platform, when
the pilot transmitted two distress calls indicating the
helicopter was "going down." There were no witnesses to the
accident; however, 9 minutes after the distress calls were
heard, the helicopter was found floating inverted in 3-4 foot
seas. Subsequently, the helicopter sank and was later recovered
and examined. Examination of the helicopter revealed no
anomalies with the airframe or flight control systems.
Examination of the engine revealed that the first and second
stage turbine blades were fractured due to extreme heating. One
blade of the second stage tubine disk had liberated from its
retention slot, and all the blade roots and retention s