By Neil Lancefield & Ryan Merrifield An aerobatic aircraft pilot bailed out moments before his plane crashed into a block of flats, an investigation has found. The plane’s canopy broke up without warning during the flight above Upper Heyford, Oxfordshire, a report by the Air Accidents Investigation Branch (AAIB) said. This resulted in the 62-year-old pilot, who was not named, suffering a deep cut to the face and the loss of sight in his right eye, investigators said. He felt he had “no option but to bail out of the aircraft”, according to the report. The man deployed his parachute and drifted …