SH0013 EAST CHINA SEA SUBMARINE CABLE REPAIRING WORK IN AREA BOUNDED BY THE LINES JOINING 31-20-49.96N 122-27-03.61E，31-20-48.56N 122-48-39.56E，31-19-31.65N 122-50-03.12E，31-17-49.01N 122-51-16.89E，31-09-12.61N 122-57-46.67E，31-08-42.39N 122-56-53.15E，31-19-09.18N 122-49-35.82E，31-19-55.20N 122-48-01.09E AND 31-20-17.50N 122-27-02.77E ， FROM 29 1600UTC APR TO 28 1600UTC MAY，WIDE BERTH REQUESTED. SHANGHAI MSA，CHINA