Serious incident to the Airbus AS332 registered JA332T on 28/08/2020 near Nagaoka [Investigation led by JTSB / Japan]

Preliminary data based on the notification from the Japanese authorities:

The aircraft took off from the temporary helipad at 9:17 JST (UTC + 9hrs) on August 28, 2020, and was transporting a cargo, and unintentionally dropped the cargo (about 790kg, construction materials) on a grass field near the temporary helipad from a height of about 25m around 9:50 JST.