The final report on the investigation of the accident near Alta on the 31st of August 2019 from the Norwgian safety investigation authority (NSIA) was published yesterday.
The translated version is
here.
"
As a result of this investigation the NSIA submits 12 safety recommendations addressed to EASA, CAA-N and Helitrans AS, the helicopter operator. They concern measures to prevent servo transparency, training and safety of commercial sightseeing flights, survival aspects, including crash resistant fuel system and use of helmets, and requirements of lightweight flight recorders."