21.   As of January, the Transportation Department requires airlines to include delays due to mechanical problems in on-time statistics.

22.   As the mechanical problems persist, the player loses confidence and treats every appearance as a must-win situation.

23.   At one point, for example, I experienced some mechanical problems.

24.   At that point, the hope was that the missing helicopter had set down in a field after having mechanical problems.

25.   Aviation experts often blame mechanical problems or pilot error for crashes.

26.   Aviation experts say they cannot exclude mechanical failure, but they cannot come up with a scenario for a mechanical problem that would suddenly destroy a plane.

27.   Before he left Vero Beach, Zeile received a call from his wife Julianne that the plane was grounded due to mechanical problems.

28.   Because they are running at capacity, any mechanical problems at refineries mean gasoline prices immediately surge.

29.   Before Hill came to Anaheim, the pitcher seemed to be working his way out of some mechanical problems.

30.   Both had trouble with planes Tramco mechanics returned to service with lingering mechanical problems.