I'm told that all aircraft at LGW were impounded for a period this morning by the airport authority but have subsequently been released following payment of half of what European owe to BAA. Check-in on the Sanford was suspended for a short while under instructions from the airport because of the aircraft seizure. It was resumed when the payment was forthcoming and flight departed as normal. Looks like a short-term issue with the airport rather than anything more fundamental affecting its operations across the board and aircraft at LGW are (now) free to operate.