21.   The failure did not cause any accidents but it delayed departures from airports around the Northeast for up to an hour.

22.   The Navy concluded that engine failure caused that crash.

23.   The power failure caused a cascade of problems in a system that is supposed to have back-ups.

24.   The power failure had caused the communication system to shut down.

25.   When confrontations did occur, they were caused by failures of measured judgment, in the form of intransigent authorities and out-of-control police.

26.   When asked which IT failures caused the most stress, workers pointed to computer or network failure, followed by printer, e-mail and Internet malfunctions in that order.

27.   Power failure has also caused disruption in the irrigation.

28.   A brake failure caused the accident at the Avansky Salt Mine station, in the outskirts of the Armenian capital, the Emergency Situations Department said.

29.   A mechanical failure apparently caused the driver to lose control of the bus, police said.

30.   A navigation failure probably caused the ship to run aground on the island, which lies between Puerto Rico and the Dominican Republic, he said.