ZCZC SA08 NCC-HAMBURG 211110 UTC APR 26 NAV. WARN. NO. 227 SOUTH OF TSS TERSCHELLING-GERMAN BIGHT. UNDERWATER OPERATIONS BY MV VOS GORGEOUS' CS '2HEN8'. IN AREA OF POSITION 53-469N 007-079E. 500 M BERTH REQUESTED. NNNN