Ryanair, the low-cost Irish airline, announced last week that they will be commencing legal proceedings against AENA, the airport authority, over loss of revenue suffered during the weekend of 3rd and 4th December. The strike action caused the airline to cancel 500 flights, which should have carried some 75,000 passengers. This is the third time this year that they have suffered at the hands of the controllers in France, Belgium, and this latest one in Spain. They calculate that they have had to cancel 2,000 flights and a further 13,000 have suffered delays because of industrial action in these three countries, which affected in the region of two and a half million passengers.