"Head down, and that is the time when I saw her lights go out, all her lights. The next thing I saw was her poop. As she went down like that so her poop righted itself and I thought to myself, “The poop is going to float.” It could not have been more than two or three minutes after that that her poop went up as straight as anything; there was a sound like steady thunder as you hear on an ordinary night at a distance, and soon she disappeared from view."
I go with most eyewitnesses who said the lights went out when the ship broke. Prior to that, lights in certain parts of the ship in the forward section went out as the bow slowly submerged. Before the break, the only lights in the forward part of the ship that was still seen to be lit were the side lights and mast light, probably because they were powered from the emergency lighting circuit while the main lighting there went because breakers opened as the bow got further under over time.