Jul 22, 2000
Accident
Substantial KALAMAZOO, MI
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
the loss of main rotor rpm due to the failure of the top engine mount and the subsequent loss of the main rotor drive belt tension. A factor was the confined area landing zone.
NTSB CHI00LA215