{"nhtsa_id":10043764,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-04-26","date":"2012-02-01","document_id":"FSB 258-013","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:APPLIANCE:AIR CONDITIONER","mfr_system":null,"summary":"MACK: COMBUSTION AIR VALVE AND PIPING ARRANGEMENT. ON THE LEU AND MRU MODEL VEHICLES IT HAS BEEN DETERMINED THAT THERE WAS INSUFFICIENT SUPPORT OF THE COMBUSTION AIR VALVE AND PIPING. *JS","document":null,"url":"https://open.wenmarpro.com/bulletins/10043764","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"LEU","year_from":2007,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"MRU","year_from":2007,"year_to":2012,"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":[]}