1.   It also prevented any airliner from taking off for nearly a week.

2.   Sharif, accused of preventing an airliner carrying the army chief from landing, pleaded not guilty to charges of attempted murder, kidnapping, terrorism and hijacking.

3.   The standards, he said, are meant to prevent airliners from hitting birds attracted by dumps.

4.   Algerian officials said a moveable stairway had not been withdrawn in order to prevent the airliner from leaving.