GD0008 ZHAN JIANG PORT WRECK “HUA TONG 16” EMERGENCY POSITION INDICATING MARK 1 ESTABLISHED IN POSN 21-02-55.0N 110-37-09.6E AND MARK 2 ESTABLISHED IN POSN 21-02-54.5N 110-37-16.4E ON 13 JAN. ALTERNATE OCCULTING LIGHT YELLOW/BLUE （1+1） 3S CAUTION ADVISED GUANGDONG MSA CHINA