SH0006 CHANGJIANG KOU CHINA，SUBMARINE CABLE REPAIRING WORK IN AREA BOUNDED BY THE LINES JOINING 31-20-49.79N 122-30-01.13E，31-20-48.27N 122-40-15.25E，31-20-15.42N 122-40-16.13E AND 31-20-17.71N 122-30-00.24E，FROM 31 1600UTC MAR TO 1 1600UTC MAY. WIDE BERTH REQUESTED. SHANGHAI MSA CHINA