11.   Controllers then lost contact with it.

12.   Last week, ground controllers lost radio control with the orbiter, but managed to regain it a day later.

13.   Officials said that air traffic controllers lost the plane on radar nearly three tenths of a mile from where it crashed.

14.   Russian ground controllers lost contact with an American commercial satellite on Tuesday after the small craft was blasted into orbit on a Russian rocket, officials said.

15.   Russian ground controllers lost contact with six small satellites Thursday soon after they were blasted into space from a far northern launch pad, a Russian space official said.

16.   The Intercontinental Aviation flight had been bound from Bogota, the capital, to the resort city of Cartagena when air traffic controllers lost track of it.

17.   The paper said controllers lost radio contact before they could respond.

18.   The most recent glitch occurred in late December, when ground controllers lost radio control with the orbiter, stoking fears of an uncontrolled fall to Earth.

19.   U.S. officials said a Predator was operating in that area at the time its controllers lost contact on Monday.

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