Early in the morning of the 23rd, radar contact was made.

The radar contact vanished off the screen, less than two miles ahead.

The ship made radar contact on the surface, and a short while later her fire control party reported a dark object in the water.

Four days later the Mason made radar contact with a surface target.

In the days that followed, a number of radar contacts sent the boat below the surface.

"314, radar contact, report five miles out, you're number seven."

Three days later, the submarine made radar contact with two targets.

The last radar contact was three minutes later, and the crash probably occurred seconds after that.

At 4:21, controllers lost all radar contact with the plane.

The skiff quickly broke off and radar contact was lost after 10 minutes.