BOHAI SEA ， TUG “HAI YANG GONG CHENG 1201” TOWING “HAI YANG SHI YOU 932” PLATFORM FROM BZ19-6-11 （38°24′12〞N/119°08′30〞E） TO BZ19-6-13 （38°18′51.099〞N/119°08′29.686〞E） FROM 031600 UTC JAN .TO 101600 UTC JAN. SPEED4.5 KNOTS.LENGTH OF TOWING 550 METERS. CAUTION REQUESTED. SHANDONG MSA.