Maritime Activity Reports, Inc. May 4, 2021 The Iron Maiden before the April 16, 2020 fire, with previous name and different owner. (Photo: U.S. Coast Guard) A 2020 fire aboard a dive support vessel docked at a Larose, La. shipyard was able to start and spread without notice because no one was continually monitoring the vessel while fire detectors were shut off during repairs, the National Transportation Safety Board said in a report issued Tuesday. The April 16, 2020, fire aboard the Iron Maiden at the Allied Shipyard caused $900,000 in damage, and no injuries were reported. While the fire caused extensive damage throughout the generator room, the NTSB found fire pattern and damage indicating the fire started near the forward bulkhead. Because the battery charger, alarm panel and generator push button start-stop panel were in the area of fire ignition identified by fire investigators, an electrical short from one of these components may have been the source of the fire. However, the exact location of the source of the fire could not be identified by fire investigators.