1.   Carol Carmody, acting chairwoman of the NTSB, said she fears that two large airliners could collide on a runway unless the problem of incursions is reduced.

2.   On Monday morning, an SAS airliner collided with a wayward Cessna business jet on a runway at Linate airport, plowed into a building and burst into flames.

3.   The airport had been closed since Monday morning, when a SAS airliner collided with a business jet that crossed its path.

4.   The Linate disaster occurred when a SAS airliner collided with a business jet that crossed its path and then careened into a baggage handling hangar bursting into flames.

5.   There were no survivors from the crash after a Saudi jumbo jet and a Kazakh airliner collided in mid-air near the Indian capital.

6.   There were no survivors from the crash after a Saudi jumbo jet and a Kazakh airliner collided.

7.   On Saturday, a German airliner reportedly almost collided over the India-Pakistan border with what was allegedly a Pakistani plane.