The second non-fatal incident occurred on 14 January 1969. It involved a BUA mainline BAC One-Eleven 201AC (registration: G-ASJJ) operating a scheduled international passenger flight from Milan's Linate Airport to London Gatwick. This was the same aircraft BUA had used to operate the One-Eleven's inaugural revenue service. On the day of the accident, the aircraft had been diverted to Linate on the outbound flight because of fog at Genoa's Cristoforo Colombo Airport. A normal take-off run was followed by a bang immediately after the aircraft had become airborne. The captain in the jumpseat who was supervising the co-pilot at the time thought that there was a problem with the no. 1 engine. He advised the pilot in command to close the throttle a short while later. The pilot in command followed this advice and lowered the nose pitch from 12 to six degrees. The engine shutdown was accompanied by a decrease in airspeed from 140 knots (161 mph/ 259 km/h to 115 kn (132 mph / 212 km/h). Although the aircraft was damaged beyond repair in the resulting forced landing on snow-covered sand about two miles from the end of runway 18, there were no fatalities among the 33 occupants (seven crew and 26 passengers) though there were two serious injuries. The accident investigators concluded that this crash was caused by the crew failing to recognise their mistake, which had resulted in shutting down the wrong engine (no. 1) in error following a compressor bang/surge in the no. 2 engine. In addition, the crew did not notice that an inadvertent movement of the relevant throttle lever had partially reduced the no. 2 engine's thrust.