| 词条 | Pacific Western Airlines Flight 314 |
| 释义 |
|name= Pacific Western Airlines Flight 314 |image= Pacific Western B737.jpg |caption=A Pacific Western Boeing 737-200 similar to the one involved in the accident, being displayed at the Alberta Aviation Museum |Date=11 February 1978 |Type= Runway incursion, thrust reverser deployment during go-around |occurrence_type = Accident |Origin= Edmonton International Airport |plane1_stopover0= Calgary International Airport |plane1_stopover1= Cranbrook/Canadian Rockies International Airport |Destination= Castlegar Airport |Site= Cranbrook/Canadian Rockies International Airport, Cranbrook, British Columbia, Canada | coordinates = {{coord|49.6114|N|115.78225|W|type:event|display=inline,title}} |Fatalities= 42 |Injuries= |Aircraft Type=Boeing 737-200 |Operator=Pacific Western Airlines |Tail Number= C-FPWC |Passengers= 44 |Crew= 5 |Survivors= 7 |}} On 11 February 1978, Pacific Western Airlines Flight 314, a Boeing 737-200 crashed at Cranbrook/Canadian Rockies International Airport, near Cranbook, British Columbia, Canada, killing 42 of the 49 people on board.[1] The scheduled flight from Edmonton International Airport to Castlegar Airport via Calgary, Alberta and Cranbrook, British Columbia crashed after its thrust reversers did not fully stow following an aborted landing to avoid a snowplow on the runway. Calgary air traffic control was considerably in error in its calculation of the Cranbrook arrival time and the flight crew did not report while passing a beacon on final approach.[2][3] AccidentFlight 314 departed Calgary at 12:32 on an estimated 23 minute flight to Cranbook, this estimate was passed to Cranbrook by Calgary Air Traffic Control.[4] Cranbook is not a controlled airport so it so has an "aeroradio" station to provide weather and advisory information to aircraft, it has no controlling function.[4] It was snowing at Cranbook with a visibility of 3/4-mile and a snow removal vehicle was clearing the runway. The Cranbook aeroradio operator advised the snowplow of the estimated arrival of Flight 314 as 13:05. Flight 314 was expected to report on the approach when passing the "Skookum Beacon" which would give about seven minutes notice of arrival at Cranbrook.[4] At 12:45 Flight 314 contacted Cranbook Aeroradio and was passed the latest weather and runway information.[4] At 12:47 Cranbook Aeroradio advised Flight 314 that snow removal was in progress.[4] After acknowledging the message about snow clearance in progress Flight 314 made no further calls and touched down on the runway at 12:55 about 800 feet from the threshold.[4] Flight 314 selected reverse thrust but immediately cancelled it and started a go-around procedure.[4] The aircraft flew down the runway at a height of 50 to 70 feet flying over the top of the snow removal vehicle.[4] The engine thrust reverser doors deployed and the pilot selected flaps from 40° to 15°, the landing gear remained locked in the down position.[4] Six seconds before impact the aircraft was now 4000 feet from the runway threshold when the left rudder was momentarily applied.[4] The aircraft climber then banked steeply to the left from a height of 300 to 400 feet and crashed to the left of the runway.[4] The aircraft was destroyed by Fire and the impact.[4] InvestigationThe investigation was conducted by the Aviation Safety Investigation Division of Transport Canada and audited by the Aircraft Accident Review Board.[4] Boeing simulations showed that aircraft was controllable with one engine at idle reverse and the other at full forward thrust in gear up, flaps 15 configuration. With flaps 25 and gear down, it was not possible to maintain level flight. The go-around would have been successful if the left engine thrust reverse doors had not been deployed. References{{Portal|British Columbia|1970s|Aviation|Disasters}}1. ^"Accident description" Aviation Safety Network {{Aviation accidents and incidents in 1978}}{{aviation-accident-stub}}2. ^"ATC transcript Pacific Western Flight 314 – 11 Feb 1978" Aviation Safety Network 3. ^February 11, 1978 : Cranbrook, BC, Canada : Pacific Western Airlines, Flight 314 : Boeing B-737-275 (sic) : C-FPWC Plane Crash Info 4. ^1 2 3 4 5 6 7 8 9 10 11 12 {{cite web|url=http://lessonslearned.faa.gov/PWA314/Cranbrook_B737_AccidentReport.pdf|title=Report # H80001 : aircraft accident, Pacific Western Airlines Boeing 737, C-FPWC, Cranbrook, B.C., 11 February, 1978|access-date=19 May 2014|archive-url=https://web.archive.org/web/20140519113553/http://lessonslearned.faa.gov/PWA314/Cranbrook_B737_AccidentReport.pdf|archive-date=19 May 2014|dead-url=yes|df=dmy-all}} (from Library and archives Canada cataloguing data) 6 : Aviation accidents and incidents in 1978|Airliner accidents and incidents in Canada|Accidents and incidents involving the Boeing 737 Original|Pacific Western Airlines accidents and incidents|Disasters in British Columbia|1978 in Canada |
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