P-3N 603 (156603) of 333Skv (Andoya) seen overflying the Dutch coastline near Scheveningen, June 1990. It was just upgraded from P-3B to -N and was yet to be reregistered to 6603. This P-3N still is in active use, alongside P-3C's or the unit. Last noted active in 2012 though. (6)603 entered service in August 1969.