BOHAI STRAIT, CHANGSHAN CHANNEL, FROM 160000UTC TO 170800UTC SEPT, BEICHANGSHAN AIS STATION AND 4 VISUAL AIS MARKS UNUSABLE FOR REPLACEMENT, DETAILS AS FOLLOWING:
BEICHANGSHAN AIS STATION（37-59.54N/120-41.65N），MMSI：004131503.
CHANGSHAN TSS CENTRAL MARK（38-00.63N/120-45.60N），MMSI：994136503.
CHANGSHAN TSS WEST END（38-03.42N/120-29.30N），MMSI：994136504.
CHANGSHAN TSS EAST END（37-58.45N/120-58.40N），MMSI：994136502.
CHANGSHAN TSS EAST WRECK（37-56.61N/121-08.61N），MMSI：994136528.
CAUTION REQUESTED.
SHANDONG MSA CHINA.