On 20 January 2020, a DHC8-300 encountered severe icing conditions and both engines successively failed during its approach to Bergen. The automatic ignition system restarted the engines but for a short time the aircraft was completely without power. It was concluded that ice had accreted on and then detached from the engine air inlets and either entered the combustion chamber partly melted and caused a flameout or disrupted the airflow into the engine sufficiently to stall it. Shortcomings were identified in the operator’s documentation for operation in icing conditions and further review of weather radar use by ATC is recommended.