SH0050 EAST CHINA SEA SUBMARINE CABLE REPAIRING WORK IN AREA BOUNDED BY THE LINES JOINING 30-58-02.4N 122-50-22.8E，30-55-19.2N 123-05-37.2E，30-54-45.6N 123-05-39.6E，AND 30-57-30.0N 122-50-22.8E，FROM 21 1600UTC NOV TO 21 1600UTC DEC. WIDE BERTH REQUESTED. SHANGHAI MSA，CHINA