Bunker spill discussed. The importance of calculations and observation during bunkering and the consequences in case of bunker spill were discussed.

In one of the ships, the bunker line for DO and HO were common. Though the planning was correct, due to the valve for DO tanks was leaking, while bunkering the HO, the HO went into the DO DB tank, causing an overflow through the sounding pipe. Minor oil spill though next pipe of the same tank and was contained as observed at a very early stage thus preventing a major oil spill.

Monitoring of all the tanks till completion of bunkering completely is very essentia
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