11.   Also, a fire at a West Coast refinery and mechanical problems at another have slowed production.

12.   Although there were early suspicions that a terrorist attack was behind the downing of the TWA aircraft, later evidence pointed to mechanical problems.

13.   Analysts said the program was ramrodded through too quickly, causing numerous mechanical problems.

14.   An aging Russian icebreaker was bogged down at sea with mechanical problems and could not have reached Mirny in time.

15.   An Alaskan Airlines jetliner bound from Mexico to Seattle plunged into the Pacific Ocean on Monday after encountering mechanical problems near Los Angeles.

16.   And no, there are no mechanical problems that would make Ford ashamed to promote this excellent car.

17.   Another bomber flew as a spare that could be substituted for the Enola Gay on Iwo Jima, if it developed mechanical problems.

18.   Ankiel felt he had overcome the mechanical problems of his disastrous start in the first round against Atlanta.

19.   As it turned out, no -- it was a mechanical problem.

20.   As I was waiting at the gate in Kansas City to board the flight a semi-official sounding voice announced that our plane had developed a minor mechanical problem.