{"nhtsa_id":10023628,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2008-01-16","date":"2007-10-01","document_id":"321","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE","mfr_system":null,"summary":"AMU (AIR MANAGEMENT UNIT) NORGREN DOUBLE-CHECK VALVE DOES NOT SEAL COMPLETELY. *NJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10023628","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"THOMAS BUILT BUSES","model":"SAF-T-LINER C2","year_from":2006,"year_to":2007,"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":[]}