Brıtaın Ulster Aırport Cancellatıons

epa02118206 Ground check that the engines of parked aircraft are free from dust at Belfast City Airport,  Northern Ireland,  April 15, 2010, following the closure of UK & Ireland Airspace due to a cloud of volcanic ash from Iceland. The Air Traffic Control Service (Nats) said no flights would be allowed in or out of UK airspace from midday to 1800BST amid fears of engine damage. Airports operator BAA confirmed all flights at Heathrow, StanstedGatwick would be suspended from midday. And in Scotland, authorities have already shut all their airports. The restrictions, in accordance with international civil aviation policy, were imposed after the Met Office warned ash could clog engines. Passengers were advised to contact their carriers prior to travel. Experts have warned that the tiny particles of rock, glasssand contained in the ash cloud would be sufficient to jam aircraft engines.  EPA/PAUL MCERLANE