1.   The reasons for using expert systems technology in aircraft maintenance are explained.

2.   Among those arrested were baggage screeners, people working in aircraft maintenance and cargo loaders.

3.   Ariana has had to stop paying overtime and has apparently cut back on aircraft maintenance.

4.   Besides its Dallas headquarters, Kimberly-Clark operates an aircraft maintenance, finishing and refurbishing facility in Dallas.

5.   Boeing Co. said recently it is planning to diversify its activities by moving into aircraft maintenance.

6.   Boeing Enterprises is also involved in flight training and aircraft maintenance.

7.   Aircraft maintenance, a highly competitive field, entails large costs for materials as well as labor.

8.   Aircraft maintenance, for many airlines, is a lucrative business.

9.   Aircraft maintenance at America West Airlines has deteriorated in the wake of efforts by management to cut costs, according to the Federal Aviation Administration.

10.   All students take a year of aircraft maintenance.