YELLOW SEAM/V “YOUZHIDIAN” TRIAL VOYAGE FROM 070000UTC TO 070900UTC DEC IN AREA BOUNDED BY THE LINES JOINING. 37-38N,122-00E; 37-38N,122-10E; 37-40N,122-00E; 37-40N,122-10E, CAUTION ADVISED. SHANDONG MSA CHINA