NORTH YELLOW SEA, FROM 140600UTC TO 211600UTC NOV， LANJINGYIHAO TRIAL VOYAGE IN AREA BOUNDED BY 38-21.0N 121-47.0E,38-26.0N 121-47.0E,38-26.0N 121-52.5E,38-21.0N 121-52.5E.CAUTION TO AVOID.
SHANDONG MSA CHINA.