System: fuel; throttle linkages and control.vehicle description: rear engine, single rear axle units (model wlsp).note: if the vehicle IS presented to an authorized dealer on an agreed upon service date and the remedy IS not provided free of charge within a reasonable time or the remedy does not correct the defect, please contact blue bird at 1-912-825-2021. Also, contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.