1.   Aviation experts believe that it is a significant factor in many airplane accidents.

2.   But an airplane accident, awful as it may be, happens in a flash and there is time only to grieve afterwards.

3.   Gordon Jr., one of his four children, died in an airplane accident not long ago.

4.   I was very moved by the death of John F. Kennedy Jr., his wife and her sister in an airplane accident.

5.   Some of the accidents Schrader has passed on highways, and airplane accidents he has seen on television, frighten him more.

6.   Susan said Neil was more afraid of dying in an airplane accident and was fearless in a race car.

7.   The National Transportation Safety Board conducts in-depth investigations of ship groundings, airplane accidents, train derailments and other such accidents.

8.   The NASA research would seek ways to reduce airplane accidents caused by human error, weather and mechanical failures.

9.   Today most commercial airplane accidents occur not because of mechanical problems but because pilots become confused.

10.   When an airplane accident occurs, however, it is eight times more likely to be fatal.