CERTAIN MY 2006 AND 2007 THOMAS BUILT MINOTOUR, FS-65, C2, HDX, AND EF SCHOOL BUSES MANUFACTURED BETWEEN JANUARY 6 AND SEPTEMBER 6, 2006, EQUIPPED WITH RICON WHEELCHAIR PLATFORM LIFT MODELS S2003, S2005, S2010, S5503, S5505, S5510, K2003, K2005, K2010, K5503, K5505, K5510. THE LIFTS INTERLOCK SWITCH SYSTEM MAY NOT DETECT THE PRESENCE OF A PASSENGER (EITHER WHEELCHAIR OR STANDEE) ON THE PLATFORM LIFT WHICH FAILS TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 404, PLATFORM LIFT SYSTEMS FOR MOTOR VEHICLES.