Sep 20, 2018
Accident
Substantial Frankfort, KS
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 133
Probable Cause
The ground crewmember's improper grabbing of the hovering helicopter's skid during an external load hook-up, which resulted in the helicopter descending and the main rotors striking ground equipment.
NTSB GAA18CA573