And every time, safety investigators would show up and dig in, filling thick files with the details of how management had disregarded known hazards.

He suggested that any ferry workers who have said that the practice is not standard should testify to that under oath before federal safety investigators.

Still, safety investigators were themselves looking for a magic bullet.

From the beginning, they were frustrated at what they saw as the slow pace of the safety investigators.

The finding is consistent with accounts provided by crew members to safety investigators, the safety board said in a statement released in Washington.

As the safety investigators dissected the wreckage of the plane, city officials said that 10 crash victims had been positively identified by relatives.

The safety investigators privately conceded they had no known way of explaining through mechanical failure what had occurred.

Eight other crew members gave similar descriptions to safety investigators.

In the test today, safety investigators first determined at what point along the track the Conrail engineer could have first seen the home signal.

He said equipment was standing by in the marshlands, ready to remove the wrecked trains once safety investigators gave the go-ahead.