"Mincio" loaded with loose linseed to New York Harbor in the United States. Unfortunately, the cold winds of a South American hurricane. At that time, the captain found that the board is in danger of fracture, once the hull crack leakage, the linseed expansion may swell the board, so the captain decided to quickly shallow, so, the ship has four times using the main engine, overload full speed drive back, finally shallow success. Upon arriving in New York port, the hull underwent a full overhaul, and found that the main engine and steering gear were seriously damaged. After calculation, the cargo party was required to bear the cost of 6,451. The owner objected to the cost and refused to pay. Try to analyze this case?

Please give correct answer with explanation.