Share this article The National Transportation Safety Board says a lack of continues monitoring was at issue in a shipyard fire at the Allied Shipyard in Larose, Louisiana last April. The fire aboard the dive support vessel Iron Maiden 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 NTSB said in a report. Marine Accident Brief 21/11 details the NTSB’s investigation into the April 16, 2020 fire, which caused $900,000 in damage but no injuries. 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, the NTSB said. However, the exact location of the source of the fire could not be identified by fire investigators.