ZCZC WA67 AVURNAV TZCSZM_UH T_P_ROVENCE - SUD PORQUEROLLES SPECIAL OPERATIONS 1. SCIENTIFIC SURVEY FROM 210000 UTC APR 26 TO 232359 UTC APR 26 BY M/V TETHYS II WITH ROV I_ AREA WITHIN 3 NM RADIUS O _/9,_6_6_N 006-02.13E (CHART FR6951) WIDE BERTH REQUESTED 2. CANCEL THIS MSG 240059 UTC APY 26NNNN