An Airprox report has been filed involving a Boeing 777 and an Airbus 320. The incident took place in the London Heathrow holding pattern on 2 June 2012 at 09:05 hours.
Both aircraft were en-route to London Heathrow and receiving an air traffic service from the airport. The incident took place at approximately 12,000 feet.
These details are subject to assessment by the independent UK Airprox Board. During 2010, the last year for which full data is available, there were 35 Airprox incidents involving commercial air transport with the absence of any risk bearing incidents.