The runway was modernized .
The runway was extended to 3,500 metres ( 11,500 ft ) from the previous 1,200 metres ( 3,900 ft ) , making it one of the longest in Europe at that time .
The runway was modernized and extended to 3,500 metres ( 11,500 ft ) from the previous 1,200 metres ( 3,900 ft ) , making it one of the longest in Europe at that time .