Aug 31, 1991
Accident
Destroyed COLEVILLE, CA
Injuries1 fatal
Phase of Flight-
ConditionsVMC
OperationFAR 133
Probable Cause
THE FAILURE OF THE PILOT TO ADEQUATELY CALCULATE THE HELICOPTER PERFORMANCE. CONTRIBUTING TO THE ACCIDENT WAS A DELAY IN JETTISONING THE EXTERNAL LOAD; THE PILOT'S OVERCONFIDENCE IN HIS ABILITIES; AND EXCEEDING OF THE HELICOPTER'S HOVER ABILITY DURING HIGH DENSITY ALTITUDE CONDITIONS.
NTSB LAX91LA377