81.   The pilot, who died in hospital, was on a routine flight and not armed.

82.   The plane was on a routine flight.

a. + flight >>共 1139
international 6.25%
commercial 5.32%
domestic 5.02%
first 3.75%
daily 2.56%
scheduled 2.30%
connecting 1.96%
long 1.78%
training 1.71%
weekly 1.64%
routine 0.87%
routine + n. >>共 938
check 3.95%
maintenance 3.77%
inspection 3.11%
patrol 2.96%
mission 2.23%
flight 2.08%
test 2.05%
checkup 1.87%
procedure 1.49%
grounder 1.44%
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