JCW COOLER CHOKED WITH MUD AND SILT:
ME-Jacket cooler-cooling sea- water pressure found suddenly increased from 1.1bar to 1.8 bar while M/Engine was running at sea speed while sailing on high-seas. The cooling system lines and all sea-water V/Vs checked-found okay. The bridge was informed, and since the ship was quite nearer to the destination port, the M/E speed was reduced and it was run at the reduced speed till the ship arrived the next port.
Action taken :
After arriving port, M/E jacket water cooler sea-water side end - covers opened up and checked & inspected found almost all tubes were clogged with mud and sea-growth and same got cleaned thoroughly and the end covers boxed up. M/E sea water P/p started and P/p dish. Pressure found to be normal and usual, i.e. 1.1 bar.