D-AHLK A registration that is used again and again by Hapag Lloyd and TUIfly. First in 1985 for an Airbus A300B4, then in 1989 for this B.737-400 and currently for a B.737-800. In the meantime, D-AHLK pictured here, was converted into a freighter in 2010 and is actually in service with Swiftair, registered EC-NMJ
(more of D-AHLK)