Germany Transport Avıatıon

epa02125839 A plane takes off from the German airport Cologne/Bonn, Germany, 20 April 2010. Germany?s air traffic controllers extended a partial flight ban until 8 am (0600 GMT) Wednesday, as air traffic across Europe slowly picked up after a cloud of volcanic ash brought the industry to a standstill for several days. Airlines were allowed to fly jets by visual flight rules,the pilot, not the ground tower, is in control, the air traffic control authority said. Four German airports - Bremen, Hamburg, Berlin-TegelBerlin-Schonefeld - are exempted from the banare expected to operate normally. Officials said that there were "good chances" that all of Germany?s airspace would be reopened until the evening. Flights had been suspended for fear that dust from an Icelandic volcano could turn into a glassy substance inside jet engines, damaging them.  EPA/Federico Gambarini