Ship ran propeller in reverse before colliding with bridge

Container Ship was victim of cyber attack

Ship dropped anchor before colliding with the bridge

Ship switched from one primary fuel source to another between leaving and colliding with bridge

A part of the ship other than the anchor fell off between leaving and the collision

A person was trespassing on the ship at the time of the collision

Between the ship undocking and the collision, a person on the ship sustained a physical injury serious enough to prevent them from doing their job 

A person on the ship at the time of the collision will be convicted of assault against another person on the ship.

Ship sounded its horn at least once between the first power loss and the collision

At least one member of the road crew working on the bridge received a warning about the ship via phone/radio before the collision

The loss of power was caused by a cooling water blockage

An overload trip mechanism was activated on the ship

An emergency generator was activated on the ship before the collision

Ship rudder was not disabled during power loss event.