Dal sempre informatissimo AvHerald:
On Jan 5th 2024 the Ministry of Transport reported that the tower controller in charge stated in an interview, that after giving the taxi instructions to the DH8C he turned his attention towards other aircraft and did not notice the DH8C had taxied onto the runway. The runway monitoring system has been working properly. The DH8C stopped on the runway for about 40 seconds, it is possible that the controller missed the alert display, there is no rule requiring the controller to stare onto the screen all times, the screen would turn red and runway be flashing yellow (operative on all runways since 2011). Runway 34R is estimated to return to service on Jan 8th 2024.
According to a Japanese Media report by a reporter on board of the A359 as passenger the evacuation was mainly completed about 7 minutes after the collision, the captain subsequently walked through the aircraft and found a number of passengers who had not yet evacuated and prompted them to leave the aircraft. The captain was the last to leave the aircraft 18 minutes after coming to a stop.