EQUIPMENT DESCRIPTION: CENTER PUSH BUTTON SEAT BELT BUCKLE CONNECTORS (TONGUES) FROM LOT 9909 AND ASSEMBLIES USING THESE CONNECTORS MANUFACTURED BETWEEN SEPTEMBER 1 AND SEPTEMBER 30, 1999. CONNECTORS FOR THE AFFECTED LOT WERE SENT THROUGH A SECONDARY PROCESS AFTER STAMPING. THE SECONDARY PROCESS FORMED A CHAMFER IN THE CONTACT SURFACE OF SOME OF THE CONNECTORS. A CHAMFER IN THE SURFACE WILL ALLOW THE CONNECTOR TO DISENGAGE FROM THE BUCKLE DURING A VEHICLE CRASH LEAVING THE OCCUPANT UNRESTRAINED. THESE BUCKLE ASSEMBLIES FAIL TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 209, “SEAT BELT ASSEMBLIES.”