Trouble?

Today at the beach we saw this fisher-ship WR 129 "Grietje Henderika" probably having trouble (a net in het propellor maybe?).
Two ships were giving assistance: Frans Hoogewind (Sea rescue) and Tempest (Salvage, commercial).
It took about one hour and after that she sailed away...

Later this evening I heard it was a rope that was stuck in the propellor.