Air Canada Flight 190
Infobox Airliner accident
name= Air Canada Flight 190
Type= Severe Turbulence
Victoria International Airport, British Columbia, Canada
Toronto Pearson International Airport, Ontario, Canada
Site= Over the
Rocky Mountainsnear Cranbrook, British Columbia, Canada.
Injuries= 10 [ [http://www.cbc.ca/canada/calgary/story/2008/01/10/injuries-landing.html?ref=rss "Pilot of rocky flight reported computer failure: passengers"] ]
Tail Number= C-GBHZ
Survivors= 88 (all)|
Air CanadaFlight 190 was a scheduled flight from Victoria International Airport, British Columbia, Canada, to Toronto Pearson International Airport, Ontario, Canada on Thursday, January 10, 2008. The plane was an Airbus A319. It was forced to make an emergency landingin Calgary International Airport, Albertadue to severe turbulence.Cite web
url=http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20080110/landing_plane_080110/20080110?hub=TopStories |publisher=CTV |date=2008-01-10 |accessdate=2008-01-10 |title=Several injured on diverted Air Canada flight]
At around 6:21 a.m. PST (14:21Z), Flight 190 departed Victoria, British Columbia. At around 8:00 a.m. MST (15:00Z) the plane was flying over the
Rocky Mountains, in northern Washington, south of Cranbrook, British Columbiawhen the incident occurred. [ [http://canadianpress.google.com/article/ALeqM5hJCd7NwQylU5SDtMusDg7jIshgyg "Wake turbulence from other aircraft possible cause of plane drop last week: TSB" "Canadian Press"] ]
Passengers reported a number of altitude changes before a 15-second occurrence that saw the plane violently shift, sending passengers and crew flying around the Airbus.Cite web |url=http://www.thestar.com/News/article/292818 |title=10 hurt as jet bucks, plunges |publisher=
Toronto Star|date=2008-01-10 |accessdate=2008-01-10] The pilot reported to the passengers that the computer failed. The pilot made an emergency call to the air traffic controller(ATC), asking for clearance to make an emergency landing at Calgary International Airport. The plane then proceeded to make a safe landing in Calgary around 8:30 am (MT).
An online flight path indicated that the plane appeared to change course south of Grand Forks. Air Canada has not confirmed the cause for the flight's diversion and will be conducting a full internal investigation.
FlightAware, which tracks commercial flights, reported radar showed the aircraft bouncing up and down between various altitudes starting about 20 minutes after takeoff, believed to be an attempt to evade turbulence.
Emergency crews were on the scene preparing for the worst. Twenty-two Calgary fire trucks and more than ten ambulance units were at the plane's landing.Cite web |url=http://www.nationalpost.com/news/story.html?id=228659 |title=Passengers injured in rough Calgary landing |publisher=
National Post|date=2008-01-10 |accessdate=2008-01-10] Ten people were taken to three different hospitals with minor injuries.Cite web |url=http://www.cbc.ca/canada/calgary/story/2008/01/10/injuries-landing.html?ref=rss |publisher=CBC |date=2008-01-10 |accessdate=2008-01-10 |title=Pilot of rocky flight reported computer failure: passengers] The injured passengers and crew were taken to waiting ambulances to be checked out at local hospitals. Uninjured passengers were taken through the airport to take other flights to Toronto.cite web |url=http://newswire.ca/en/releases/archive/January2008/10/c8161.html |title=Air Canada provides statement on flight AC190 |accessdate=2008-01-21] Later the same day, all injured passengers and crew were released from the hospitals.cite web |url=http://micro.newswire.ca/release.cgi?rkey=1601108161&view=13213-0&Start=0 |title=Air Canada AC190 update: last passenger released from hospital |accessdate=2008-01-19]
As is typical in the immediate aftermath of any aviation incident, there has been speculation as to the cause, including:
* Dis-engagement of the
autopilotcaused by "computer failure"
Clear-Air Turbulence(CAT) caused by the movement of the jet stream over the Rocky Mountains, followed by dis-engagement of the autopilot when the aircraft's movements were out of the range that the autopilot can handle,
* A specific type of airflow called
Lee Waveor Mountain Wave, followed by dis-engagement of the autopilot when the aircraft's movements were out of the range that the autopilot can handle,
Wake turbulencefrom another aircraft ahead and higher than AC190, followed by dis-engagement of the autopilot when the aircraft's movements were out of the range that the autopilot can handle. cite web |url=http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20080116/air_canada_080116/20080116/ |title=Wake turbulence' may be behind bumpy AC flight |accessdate=2008-01-19]
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