Nov 4, 1992
Accident
Substantial PALM BEACH, FL
Injuries2 minor
Phase of Flight-
ConditionsVMC
OperationFAR 137
Probable Cause
THE PILOT'S INADEQUATE PREFLIGHT PLANNING. A FACTOR WAS THE PILOT'S FAILURE TO MAINTAIN ROTOR RPM DURING THE AUTOROTATION.
NTSB MIA93LA014