zthere's limited sensor data. it includes ship speed, engine rpm, ship heading, and motor angle. as well as alarm information. engineers are working to identify and validate all of the data. it recorded the ships departure at it recorded the ships transit outbound in the fort mchenry channel and the striking of the bridge. the ship had entered the channel . 1:24, the ship was underway on a true heading of approximately 141. a speed of approximaly eight knot numerous alarms were recorded on the ships audio. about the same time, data sees recording. video audio continue to record using a redundant power source. at around zero 1:26, the video resumed recording since a shipsl call for tugs in the vicinity to assist. the dispatcher followed the duty officer regarding the blackout. they were ordered to drop support anchor in addition to additional steering commands. at one: 27:25, the power issued a radio call reporting that they had lost all power and was approaching the bridge. time, the following also occurred. the duty officer radio two of the units that were already on e bridge. o