{"nhtsa_id":621686,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-09-28","date":"2001-04-23","document_id":"S01EN","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:ANTILOCK","mfr_system":null,"summary":"LETTER TO BLUE BIRD OWNERS REGARDING RELOCATION OF THE R12DC RELAY VALVE TO PREVENT THE TOP FITTING FROM RUBBING THE FLOOR ON CERTAIN FLOOR PLANS OFCERTAIN MODEL REAR ENGINE BUSES WITH RIDEWELL SUSPENSION AND AIR BRAKES EQUIPPED WITH ANTILOCK BRAKING SYSTEM (ABS). *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/621686","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"abs","name":"Anti-lock brakes","parent":"brakes"}],"codes":[],"topics":[],"vehicles":[{"make":"BLUE BIRD","model":"CSRE","year_from":1998,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"BLUE BIRD","model":"QBRE","year_from":1998,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"BLUE BIRD","model":"SCRE","year_from":1998,"year_to":2000,"match":null,"vehicle_ids":[]},{"make":"BLUE BIRD","model":"TCRE","year_from":1998,"year_to":2000,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}