ZCZC SA19 NCC-HAMBURG 261425 UTC APR 26 NAV. WARN. NO. 241 GERMAN BIGHT. NORTHWESTERLY OWF 'BARD OFFSHORE 1'. SURVEY OPERATIONS IN PROGRESS BY MV 'KOMMANDOR ORCA' CS 'MKFI8' AROUND POSITION 54-285N 005-308E. RESTRICTED MANOEVRABILITY DURING OPERATIONS. BERTH OF 1 NM REQUESTED. NNNN