Aug 8, 2018
Accident
Substantial Honolulu, HI
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 135
Probable Cause
The operator's improper installation of the tail rotor (TR) teeter bearings, which resulted in cascading in-flight failures of the TR components and attach hardware.
NTSB WPR18LA221