HB0140 BOHAI SEA OBSTRUCTION REPORTED IN AREA BOUNDED BY THE LINES JOINING：
（1）39-23.90N/119-37.30E； （2）39-28.20N/119-44.20E；
（3）39-29.90N/119-42.90E； （4）39-25.70N/119-35.60E.
ENTERING PROHIBITED. HEBEI MSA CHINA.
