Defect Investigation Detail

THOMAS BUILT BUSES / VISTA / 2013

Components - Details
NHTSA Action Number: PE19007 Vehicale/Equipment Name: THOMAS BUILT BUSES
Vehicale/Equipment Model: VISTA Vehicale/Equipment Year: 2013
Component Name: SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET Manufacturer's Name: Daimler Trucks North America, LLC
Date Opened: Jun, 18 2019 Date Closed: --
Subject: Rear Leaf Spring Fractures Summary: Nhtsa's office of defects investigation (odi) has identified field reports in daimler truck north america's (dtna) 2018-4th quarter early warning reporting (ewr) data describing cracked rear leaf-style suspension springs in thomas built school buses. odi reached out to 3 municipal school bus fleets operating subject vehicles who described similar failures where a fractured piece of leaf spring separated from the vehicle while driving. odi also contacted a major nationwide school bus transportation service provider who also identified numerous potential failures.a fractured piece of leaf spring that detaches from a moving school bus could potentially strike a pedestrian or a following vehicle.odi is opening this investigation to evaluate the cause, consequence, scope and frequency of the alleged defect (item detachment) in the subject thomas built school buses.