BOHAI SEA ， TUG “SHENGLI 291” TOWING “SHENGLIZUOYEWU” PLATFORM FROM CB1HA（38-11′45.49″N/118-55′31.10″E） TO ZHUANGHAI113（38-08.843′N/118-55.769′E） FROM 090900 UTC OCT .TO 151500 UTC OCT. SPEED 3 KNOTS.LENGTH OF TOWING 300 METERS. CAUTION REQUESTED. SHANDONG MSA.