The British Airprox Board, which is run by the Civil Aviation Authority and the Ministry of Defense to investigate such close calls in the sky, said the Airbus A320 was about 11 miles east of Glasgow Airport when the pilot told air traffic control the plane "just had something pass underneath us quite close," the Glasgow Evening Times reported Thursday.
The board said the object spotted by the pilot and co-pilot did not set off the traffic collision avoidance systems and was not picked up by radar at Glasgow Airport, but it was spotted 28 seconds before the December incident by radar at nearly Glasgow Prestwick Airport.
The Airprox board said the object could not have been another plane, a helicopter or a man-carrying balloon. It said the object was unlikely to be a glider, hang glider or para-motor.
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