ZCZC TF72 160521 UTC MAY OOSTENDERADIO MSI 204/26 PILOT_ZND VTS SERVICE MESSAGE _CM__A_ IECREASED SENVICE LEVEL VTS WANDELAAR APPROACH CH 60 TEMPORARW WNOT RESPONSIVE DURING RADAR ASSISTANCE ON VHF 4 VTS RADAR ZEEBRUGGE VHF 19 IS CLOSED VTS RADA_GC_ZHYZSMAPPLYVEN_OQ_ONEB1__ !94 ),_ :-44834' NNNN