The 90 meter long, 3211 dwt freighter BBS Sand (formerly the Arklow Sand) became disabled on the EMS River.  The BBS Sand had suffered an engine failure and continued to drift until it allided with a navigation buoy.  The vessel dragged the buoy into the middle of the navigation channel before the crew dropped emergency anchor.   The crew cleared itself of the buoy and restored power.  The BBS Sand was assisted into the Emden where it berthed.   No reports of injuries or pollution was released.  Authorities began an investigation into the incident and discovered that the vessel had suffered a power blackout while passing through Brunsbuettel locks.   The BBS Sand was detained until the cause of the engine failures can be determined.   The buoy was later placed back into its proper location.