This is interesting.
FlyBe complaint about Gatwick Airport charges, in summary Flybe have lost.
Investigation under Section 41 of the Airports Act 1986 of the structure of airport charges levied by Gatwick Airport Limited -CAA decision
17 JANUARY 2013
http://www.caa.co.uk/docs/5/S41GatwickFlybeDecision.pdf
What effect are the extra costs having on the Flybe operation out of Gatwick. Is there now a possibility that they will withdraw Dash 8 ops ?