NTSB Factual Report

The pilot reported that during a hover taxi maneuver, the tail rotor made contact with a main rotor blade of a parked helicopter that was tied down. The taxiing helicopter sustained substantial damage to the tail rotor blades. Examination of the helicopter did not reveal any preimpact mechanical malfunctions. The pilot did not report any preaccident mechanical malfunctions or failures that would have precluded normal operation.

NTSB Probable Cause

The pilot's failure to maintain adequate obstacle clearance while taxiing.