{"nhtsa_id":10083166,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-20","date":"2016-07-13","document_id":"FSB 712-001","mfr_campaign":null,"replaces":null,"component":"STRUCTURE","mfr_system":null,"summary":"ON SOME MACK GU TRUCKS MAY EXPERIENCE CRACKS IN THE DRIVER’S SIDE (LEFT SIDE), FORWARD, UPPER FRAME FLANGE AREA. MACK TRUCKS HAS IMPROVED THE DESIGN OF THE FRAME REINFORCEMENT PLATES. IF CRACKS APPEAR, FRAME REINFORCEMENTS ARE AVAILABLE FOR THE LEFT HAND SIDE, 8 MM AND 9.5 MM THICKNESS FRAME RAILS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083166","components":[{"id":"structure-body","name":"Body and frame","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","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":[]}