More than 270,000 air passenger journeys were disrupted by Heathrow airport's closure last week, new figures show.Some 234,000 passengers booked to fly to or from Heathrow on Friday March 21 had their flight cancelled, diverted or delayed when the airport suffered a power outage because of a fire at a nearby electricity substation, aviation industry statistics seen by the PA news agency show.No flights were permitted at the airport on that day until around 6pm.

More than 270,000 air passenger journeys were disrupted by Heathrow airport's closure last week, new figures show.Some 234,000 passengers booked to fly to or from Heathrow on Friday March 21 had their flight cancelled, diverted or delayed when the airport suffered a power outage because of a fire at a nearby electricity substation, aviation industry statistics seen by the PA news agency show.No flights were permitted at the airport on that day until around 6pm.