ZCZC SA80 NCC-HAMBURA 170700 UTC MAY 26 NAV. WARN. NO. 303 GERMAN BIGHT. NORTHEASTERLY WEISSE BANK. SURVEY OPERATIONS IN PROGRESS BY MV 'KOMMANDOR ORCA SN CS 'MKFI8' AROUND POSITION 55-06N 006-11E RESTRICTED MANOEVRNBILITY DURING OPERATIONS. BERTH OF 1 NM REQUESTED. NNNN