<sod >Dozens of firefighters are trying to prevent the fire, which has spread to the roof of the hangar, from reaching passenger aircraft inside carrying thousands of litres of aviation fuel.< eod>< sod > Dozens of firefighters are trying to prevent the fire, which has spread to the roof of the hangar, from reaching two passenger aircraft inside carrying 5,000ÃÂÃÂ litres of aviation fuel.< eod>