ZCZC KA50 AVURNAV CHERBOURG 50/26 WIGHT - CENTRE MANCHE SCIENTIFIC INSTRUMENTS CHANGE 1. FROM 132200 UTC MAY 26 TO 302159 UTC OCT 26 GEOPHYSICAL RECONNAISSANCE CAMPAIGN AT SEA AREA BOUNDED BY: 49-51.24N 000-40.12W 49-51.24N 000-45.79W 49-48.48N 000-45.70W 49-47.67N 000-48.93W 49-52.77N 000-54.62W 49-54.37N 000-56.71W 49-56.50N 000-51.41W 49-57.88N 000-39.18W NAVIGATE WITH CAUTION 2. CANCEL AVURNAV CHERBOURG 49/26 NNNN