YELLOW SEAM/V “ZHAO SHANG HUA 1” TRIAL VOYAGE FROM 250400UTC TO 280900UTC OCT IN AREA BOUNDED BY THE LINES JOINING. 37-25N 123-10E; 36-50N 123-10E; 36-50N 123-28E; 37-25N 123-28E, CAUTION ADVISED. SHANDONG MSA CHINA