Primary finding
Probable cause
The pilot's failure to maintain adequate clearance from the safety skirting during the repositioning landing.
Investigator assessment
Analysis narrative
The pilot was asked to reposition the helicopter on the helideck in an effort to clear a space for a helicopter that was coming in to land. During the repositioning landing, the pilot felt a high frequency vibration and the helicopter began to shudder. The pilot landed and after egressing the helicopter, discovered that a piece of tail rotor skin was lodged in the skirting; the tailrotor had impacted the safety skirting. The helicopter's tailboom sustained substantial damage. The pilot reported that there were no preimpact mechanical malfunctions with the helicopter.
Source record
Factual narrative
The pilot was asked to reposition the helicopter on the helideck to make room for a helicopter that was coming in to land. He performed a walk around inspection of the area, and was aware of the location and height of the helideck safety skirting. During the repositioning landing, the pilot felt a high frequency vibration and the helicopter began to shudder. After the accident, a piece of tail rotor skin was found lodged in the skirting. The tailrotor had impacted the skirting. Substantial damage occurred to the helicopter's tailboom. The pilot reported that there were no mechanical malfunctions with the helicopter in reference to the accident flight.