Dec 15, 2017
Accident
Substantial Islamorada, FL
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 135
Probable Cause
The pilot's activation of the rotor brake while the No. 2 engine was still set to govern the power turbine speed, which resulted in continuous power being applied to the rotor while the rotor brake was engaged and led to excessive friction, heat, and a subsequent fire in the area of the rotor brake.
NTSB ERA18LA053