YELLOW SEAM/V “XINYONGAN” TRIAL VOYAGE FROM 230400UTC TO 231000UTC JUL IN AREA BOUNDED BY THE LINES JOINING. 1.37-33N/122-24E; 2.37-33N/122-31E; 3.37-31N/122-31E; 4.37-31N/122-24E, CAUTION ADVISED. SHANDONG MSA CHINA