BOHAI SEA ，TUG “HAI YANG SHI YOU 677 ” TOWING “TIAO ZHAN ZHE” PLATFORM FROM KL16-1WHPA（37°39′14.822″N；119°31′28.570″E）TO PL19-3WHPA（38°22′04.112″N；120°05′15.080″E), FROM 220700 UTC SEP TO 291600 UTC SEP. SPEED 4 KNOTS.LENGTH OF TOWING 550 METERS. CAUTION REQUESTED.