ZCZC GA11 NAVAREA I 171/26 NORTH SEA. FRIGG FIELD. 1. SEISMIC SURVEY IN PROGRESS BY RSV AMAZON CONQUEROR TOWING 8 X 1 MILE LONG CABLES IN AREA BOUND BY 60-00.9N 001-57.8E, 60-01.7N 002-13.3E, 59-48.7N 002-15.8E, 59-47.2N 001-55.9E. AZ MILE BERTH REQUESTED. M/V AMBER G AND M/V SHEMERAH II IN ATTENDANCE. 2. CANCELCNAVAREA I 160/_6 (GA99). NNNN