Tests  

Posted by y. 源

Just finished Jet Engine and Electricity progress tests today and next week still got 6 more tests to go, mainly some progress tests and the final tests for Aircraft Systems, Electricity, Theory Of Flight and Jet Engine. Finished Piston Engine test few weeks ago and scored 99%. The other 1% wasn't because careless this time. It was because I didn't know how to do that particular question and "tembak" the wrong answer. Well, that's too bad, isn't it? Looks like I still got to work much harder!!

Many would think that the students gonna go bonkers if the school keeps giving us tests everyday and expect us to score above 75%. The instructors also expect us to score 100% for all the subjects too. Reason? Pilots must know everything about the aircraft and they carry the responsibility to make sure 200-300 passengers arrive safely at their destination. Of course, one may argue that to err is human. But obviously the slightest mistake due to human error in flight (during take-off and even landing) may invite terrible disaster. I suppose none of you want a "not-so-knowledgeable" pilot to fly the plane that you are taking.

Air disasters are not solely due to human errors though. Other factors are bad weather, aircraft mechanical failure, and so on. Below are some statistics about air crash from planecrashinfo.com.

"Pilot error (weather related)" represents accidents in which pilot error was involved but brought about by weather related phenomena. "Pilot error (mechanical related)" represents accidents in which pilot error was involved but brought about by mechanical failure. "Other human error" includes air traffic controller error, improper loading of aircraft, fuel contamination, improper maintenance etc. Sabotage includes explosive devices, shoot downs and hijackings. "Total pilot error" is the total for all types of pilot error (on the fourth line in yellow). Where there were multiple causes, the most prominent cause was used.

Fatal Accident Causes by Category (percent)

Cause 1950s 1960s 1970s 1980s 1990s+ Total
Pilot Error 27 24 17 19 21 22
Pilot Error (weather related) 5 13 10 11 15 11
Pilot Error (mechanical related) 5 3 3 3 4 4
Total Pilot Error 37 40 31 33 40 37
Other Human Error 2 5 6 4 5 4
Weather 9 7 8 10 6 7
Mechanical Failure 12 13 14 13 14 13
Sabotage 3 3 6 7 6 5
Other Cause 0 2 2 1 0 1
Undetermined or missing 37 30 34 32 29 33



Accidents and Fatalities by Phase of Flight

Source: Statistical Summary of Commercial Jet Airplane Accidents, Boeing



Survival Rate of Fatal Accidents by Decade
Decade % surviving
1930s 18
1940s 23
1950s 22
1960s 21
1970s 24
1980s 33
1990s+ 32

Survival rate of passengers on aircraft ditching during controlled flight 60%

Source: PlaneCrashInfo.com accident database




This entry was posted on Friday, January 11, 2008 and is filed under , . You can leave a response and follow any responses to this entry through the Subscribe to: Post Comments (Atom) .

0 comments