{"nhtsa_id":10028266,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-03-20","date":"2008-09-16","document_id":"FU-74-B-174","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR","mfr_system":null,"summary":"PIERCE: AUXILIARY FRONT BRAKE LOCK OPERATION. FRONT BRAKES MAY NOT BE APPLIED WHEN VALVE IS ACTUATED. ITS CAUSED BY A VARIETY OF DISCREPANCIES IN THE FRONT BRAKE LOCK AIR SYSTEM. MAKE AND MODEL YEARS UNKNOWN. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028266","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PIERCE","model":"FIRE TRUCK","year_from":null,"year_to":null,"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":[]}