Tiens , il n' y a pas qu' a Stasbourg que cela tousse :
AARHUS AIRPORT, Denmark’s third largest, has been ordered by the
Danish Civil Aviation Authority to end its practice of only charging
Ryanair 35DKK (£3.30) per passenger, half the fee other airlines have
to pay, according to the Irish Times. The authority has threatened to
withdraw the airport’s operating licence unless it amends its contract
with Ryanair by 1 October. The authority says that it warned Aarhus
Airport several times this summer that it would revoke its operating
licence if it does not conform to international rules to treat all
companies equally. source :
http://www.aar.dk