Serious Incident to the helicopter AS332 registered JA6717 on 23/09/2017 at Kochi [Investigation led by JTSB / Japan]

Preliminary data based on the notification from the Japanese authorities:

The aircraft took off from a temporary helipad and was transporting a cargo (stones of 5cm to 25cm in dia. total weight: approx. 2.7t), and unintentionally dropped them in mountains from a height of 70m.