21.   The tanks exploded one after another Monday, triggered by work being done on a faulty valve.

22.   Then doctors snaked a tiny tube down her throat to fix the faulty valve causing the problem.

23.   Workers at a Russian atomic power plant prepared Tuesday to switch back on a reactor that was shut down over a faulty valve the day before, officials said.

24.   Barber was hospitalized on Monday with flu-like symptoms and doctors discovered a faulty valve in his heart.

25.   The US space agency NASA delayed for a third time Saturday the launch of the space shuttle Endeavour after a faulty valve was discovered on a maneuvering thruster.

26.   The gas leak was traced to a faulty valve on the tanker car, police captain Phillip Hill said.