Football-sized drone flown 20m from Heathrow-bound plane - BBC News
The plane was above Biggin Hill, heading to Heathrow, when the drone was spotted passing the right wing "very quickly", UK Airprox Board (UKAB) said.
The Airbus A320 crew saw it but would not have had sufficient time to take action to avoid a potential collision.
Police have not been able to locate the drone operator, UKAB said.
The drone, which had a flashing magenta light, was spotted by the plane's crew while flying at an altitude of 11,000ft on 4 August.
The report concluded the drone had endangered the lives of those on the plane as a collision "had only been narrowly avoided".
The plane was above Biggin Hill, heading to Heathrow, when the drone was spotted passing the right wing "very quickly", UK Airprox Board (UKAB) said.
The Airbus A320 crew saw it but would not have had sufficient time to take action to avoid a potential collision.
Police have not been able to locate the drone operator, UKAB said.
The drone, which had a flashing magenta light, was spotted by the plane's crew while flying at an altitude of 11,000ft on 4 August.
The report concluded the drone had endangered the lives of those on the plane as a collision "had only been narrowly avoided".
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