aerospace accidents due to weather phenomenons

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{ Aircraft Accidents due to weather phenomenons An aviation accident is defined as an occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, in which a person is fatally or seriously injured, the aircraft sustains damage or structural failure or the aircraft is missing or is completely inaccessible. - 21.3% of total accidents are weather realted. - 76% of Causes of NAS delays in 2004 is weather realated.

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describes two major accidents in history caused by weather phenomenons like volcanic ashes and fog.

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Page 1: aerospace accidents due to weather phenomenons

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Aircraft Accidents due to weather phenomenons

An aviation accident is defined as an occurrence associated with the operation of an aircraft which takes place between the time any person boards the aircraft with the intention of flight until such time as all such persons have disembarked, in which a person is fatally or seriously injured, the aircraft sustains damage or

structural failure or the aircraft is missing or is completely inaccessible.

- 21.3% of total accidents are weather realted.

- 76% of Causes of NAS delays in 2004 is weather realated.

Page 2: aerospace accidents due to weather phenomenons

different weather phenomenons that may cause aircraft accidents: 1-Fog 2-volcano 3-lightnings 4-thunders 5-microbursts 6-rain/snow 7-sandstorms...

Aircraft Accidents due to weather phenomenons

Page 3: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

tenerife aircraftidisater

Date: March 27, 1977Type: Pilot error, runway incursion, poor weather conditions, limitations and failures in communicationSite: Los Rodeos Airport(now Tenerife North Airport)Tenerife, Canary Islands, SpainTotal fatalities:583Total survivors:61

Page 4: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

First aircraftType : Boeing 747–121Operator:Pan American World AirwaysPassengers:380Crew:16Fatalities:335 (326 passengers, 9 crew members)Survivors:61

Second aircraftType:Boeing747-206BOperato:KLMPassengers:234Crew:14Fatalities:248 (all)Survivors:0 (none)

Canary Islands,Spain

American aircraft Dutch aircraft

Page 5: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

 During taxiing, the weather deteriorated and low-lying clouds limited the visual range to about 300 m (1,000 ft). Legal or stipulated threshold for takeoff was 700 m (2,300 ft) visibility

everything is calm until suddenly out of nowhere the pilot says:"Goddamn, that son-of-a-bitch is coming straight at us!"

fog in an airport

Page 6: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

Actual collision point

accident simulation

Page 7: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

British airways Flight 9speedbird 9 Jacarta Incident

Date 24 June 1982

Type Flameout of all engines due to blockage by volcanic ash

Site Mount Galunggung, West Java,Indonesia

Passengers 248

Crew 15

Page 8: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

The ash is hard and abrasive and can quickly cause:1- significant wear on propellers and turbo compressor blades 2-scratch the cockpit windows3-impairing visibility4-It contaminates fuel and water systems, can jam gears5-can cause a flameout of the engines

Volcanic ashes:

Page 9: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons

although all the four engines were off, there were no fatalities.

failure of all four engines. 

The aircraft was able to glide far enough to exit the ash cloud

Page 10: aerospace accidents due to weather phenomenons

Aircraft Accidents due to weather phenomenons