During the course of the investigation into the ship's sinking, representatives of MTL theorized that the ship ran aground during her maneuvering to help the
Theodora, fatally damaging the hull. They contended that it was this grounding that caused the
Marine Electric to sink five hours later. However, these theories were disproved by the evidence discovered during the Coast Guard investigation. Investigations by the Coast Guard, led by Captain Dominic Calicchio and independent examinations of the wreck, discovered that the
Marine Electric had left port in an un-seaworthy condition, with gaping holes in its deck plating and hatch covers. These had been noted at multiple points by surviving Chief Mate Bob Cusick, who testified that no effort had been made by MTL to rectify the issues. The hatch covers, in particular, posed a problem, since without them the cargo hold could fill with water in the storm and drag the ship under. Investigators discovered that much of the paperwork supporting MTL's declarations of the
Marine Electric′s seaworthiness was faked. Inspection records showed inspections of the hatch covers during periods when they had in fact been removed from the ship for maintenance; inspections were recorded during periods of time when the ship was not in port. A representative of the hatch covers' manufacturer warned MTL in 1982 that their condition posed a threat to the ship's seaworthiness, but inspectors never tested them. Yet the
Marine Electric was repeatedly certified as seaworthy. Part of the problem was that the Coast Guard delegated some of its inspection authority to the
American Bureau of Shipping. The ABS is a private, non-profit agency that developed rules, standards and guidelines for ship's hulls. In the wake of the
Marine Electric tragedy, questions were raised about how successfully the ABS was exercising the inspection authority delegated to it, as well as about whether the Coast Guard even had the authority to delegate that role. Also there was a conflict of interest in that the inspection fees paid to the ABS were paid by the ship owners. ==Aftermath==