LN0071 BOHAI SEA, TUG “HAI YANG GONG CHENG 1201” TOWING “BO HAI 9 HAO” DRILLING PLATFORM FROM 40-05-44N 121-08-20E TO 40-04-26N 120-53-09E，AT221600UTC APR. LENGTH OVERALL 476 METRES SPEED 4.5 KNOTS. TUG “BO HAI 9 HAO” KEEP WATCH ON VHF CHANNEL 16 AND 69. WIDE BERTH REQUESTED. LIAONING MSA CHINA.