Eight hours after the collision, Oregon sank bow first in 125 feet of water.
Officials said it was unlikely they would try to raise the plane, which sank in more than 1,000 feet of water.
These had apparently helped prevent the aircraft from sinking in 25 to 40 feet of water.
A few minutes later, it sank in 93 feet of water.
At 12:09, she stopped all motors and sank to the bottom in 180 feet of water.
The forward third of the ship sank in 265 feet of water, taking 36 officers and men with it.
She rapidly sank in 40 feet of water, but all hands, along with the parrot and cat, got clear safely.
She sank in eight feet of water, which left her upper works still dry.
By dawn, any wreckage not recovered had sunk in 120 feet of water.
That prevented the plane from sinking in 25 to 40 feet of water.
