1.   As the tension grew, Russian ground controllers lost patience with the fatigued crew.

2.   In June, air-traffic controllers lost radio contact with planes when cables that control radio frequencies were inadvertently disconnected.

3.   The plane was performing a routine series of maneuvers when controllers lost touch.

4.   The report released on Thursday said controllers had lost control of the craft during a maintenance period in which several recalibration operations normally done separately were compressed together.

5.   Pentagon officials said a Predator was operating in that area at the time its controllers lost contact Monday.

6.   Pentagon officials said a Predator was operating in that area at the time its controllers lost contact on Monday.

7.   Radio controllers lost contact with the pilot late Tuesday, about half an hour after the plane left Calgary International Airport.

8.   At least two police helicopters were to spend the night in the Caribbean area where air traffic controllers lost radar contact with the plane, authorities said.

9.   Because of the bad weather, the plane was on an instrument approach when air traffic controllers lost contact with it, the Air Force said.

10.   But Yossi Shartiel, a satellite project organizer in Israel, told Israeli army radio that controllers had lost contact with the craft.