Serious incident to the helicopter Airbus AS332 registered OE-XSP on 29/03/2017 at Mesocco [Investigation led by STSB / Switzerland]

Preliminary data based on the notification from the Swiss authorities:

During placing a load consisting of two logs, the 50 m long line detached from the safety hook of the damper element and fell off to the unloading point. The safety hook was a LHW-13-10 type.