Incident: Air Canada B773 at Toronto on May 28th 2012, dropped engine parts on departure

By Simon Hradecky, created Monday, May 28th 2012 23:06Z, last updated Thursday, May 31st 2012 14:08Z An Air Canada Boeing 777-300, registration C-FITW performing flight AC-1 from Toronto,ON (Canada) to Tokyo Narita (Japan) with 318 passengers and 16 crew, was in the initial climb out of Toronto's runway 23 when the crew reported they had needed to shut the right hand engine (GE90) down, the aircraft levelled at 5000 feet MSL. Approach subsequently told the crew that police had recovered quite some part of an engine cowling that had gone down into Courtney Park. The aircraft dumped fuel and returned to Toronto's runway 23 for a safe landing about 90 minutes after departure and stopped on the runway.



Police reported the engine parts hit a car smashing the rear window and another car's front window. Video material suggests the parts may have been turbine blades.



Ground witnesses report neither engine cowling appeared to be missing or penetrated.



The Canadian TSB reported on May 29th an investigator has been dispatched on site to collect information about the occurrence. The aircraft was climbing through 1000 feet AGL when a loud bang was emitted by the right hand engine followed by a rapid rise in EGT prompting the FADEC to shut the engine down automatically. The aircraft dumped fuel for about one hour before landing back to runway 23, the aircraft stopped on the runway to permit the brakes cool down before proceeding to the gate. Debris from the engine struck several cars on the ground causing damage but no injuries. The engine has been removed and will be examined by the manufacturer for failure determination.



On May 31st Air Canada reported the engine suffered a "contained failure" ejecting turbine parts through the exhaust with no other damage to the aircraft. The engine has been maintained regularly and was fully compliant with all mandatory checks. While Air Canada's maintenance conducts the day to day on-wing maintenance, major overhauls with the engine taken off the wing are being carried out by a longstanding European workshop.



http://flightaware.com/live/flight/ACA1/history/20120528/1810Z/CYYZ/RJAA







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