{"nhtsa_id":10043208,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-03-03","date":"2007-05-15","document_id":"SB-S-07-LR","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"BLUE BIRD: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN MODEL BUSES, ELBOW MAY BRAKE OFF AND UNFILTERED AIR CAN ENTER ENGINE IF INDICATOR LINE TO AIR INTAKE TUBE IS IN CONTACT WITH STEPWELL. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10043208","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"ISB-02","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":[]}