ZCZC KA55 AVURNAV CHERBOURG 55/26 THAMES - DST MANCHE EST AIDS TO NAVIGATION CHANGES AIS TRANSMITTER OUT OF SERVICE - BUOY DAMAGED - LIGHT BUOY - LIGHT UNLIT - LIGHT UNLIT BUOY SANDETTIE EST 51-14.90N 002-02.70E NAVIGATE WITH CAUTION NNNN