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  • B773, vicinity Toronto Canada, 2012 (Synopsis: On 28 May 2012 a GE90-powered Air Canada Boeing 777-300ER experienced sudden failure of the right engine during the initial climb after take off. There were no indications of associated engine fire and the failed engine was secured, fuel jettisoned and a return to land made. The Investigation found that the failure was related to a known manufacturing defect which was being controlled by repetitive boroscope inspections, the most recent of which was suspected not to have identified deterioration in the affected part of the engine.)
  • CRJ2 / B773, Toronto Canada, 2019 (Synopsis: On 9 August 2019, a Bombardier CRJ-200LR about to depart Toronto which had read back and actioned a clearance to line up on the departure runway then began its takeoff without clearance and only commenced a high speed rejected takeoff when a Boeing 777-300 came into view crossing the runway ahead. A high speed rejected takeoff was completed from a maximum speed of around 100 knots. The Investigation concluded that an increased crew workload, an expectation that a takeoff clearance would be received without delay and misinterpretation of the line up instructions led to the premature initiation of a takeoff.)
  • DC95 / C206, Toronto Canada, 2002 (Synopsis: On 25 August 2002, a Douglas DC9-51 being operated by North West Airlines on a scheduled passenger flight from Toronto to Minneapolis had just taken off in day VMC when a Cessna 206 being operated on a passenger charter flight from Georgian Bay to Toronto unexpectedly carried out a missed approach from another runway. And despite last minute visual avoiding action came within close airborne proximity whilst still within the airport perimeter. There were no injuries to any of the 109 occupants of the DC9 or the 4 occupants of the Cessna.)
  • DH8C, Toronto Canada, 2019 (Synopsis: On 10 May 2019, a Bombardier DHC8-300 taxiing in at Toronto at night was hit by a fuel tanker travelling at “approximately 25 mph” which failed to give way where a designated roadway crossed a taxiway causing direct crew and indirect passenger injuries and substantial damage. The Investigation attributed the collision to the vehicle driver’s limited field of vision in the direction of the aircraft coming and lack of action to compensate for this, noting the need for more effective driver vigilance with respect to aircraft right of way rules when crossing taxiways. The aircraft was declared beyond economic repair.)
  • E170 / Vehicles, Toronto Canada, 2019 (Synopsis: On 28 January 2019, a departing Embraer 170-200 narrowly avoided collision with part of a convoy of four snow clearance vehicles which failed to follow their clearance to enter a parallel taxiway and instead entered a Rapid Exit Taxiway and continued across the runway holding point before stopping just clear of the actual runway after multiple calls to do so. A high speed rejected takeoff led to the aircraft stopping just before the intersection where the incursion had occurred. The Investigation noted the prevailing adverse weather without attributing any specific cause to the vehicle convoy’s failure to proceed as cleared.)