Rear spring trailing arm bolt loose

An NHTSA Preliminary Evaluation into Thomas Built Buses vehicles. Closed 7 January 2010.

Investigation
PE09050
Type
Preliminary Evaluation
Opened
7 October 2009
Closed
7 January 2010

What NHTSA investigated

This investigation was opened after odi was informed by two school bus fleets that they had found loose bolts on the rear suspension trailing arms of the air ride suspension on several of their buses. Odi visited the local dealer and confirmed the loose bolts.if these bolts fail and separate, the rear suspension can shift, allowing the rear end housing to move forward or backward.this could have a detrimental impact on vehicle control.in late NOVEMBER2009, daimlerfiled a safety recall (09V-458) outlining theirremedy program.daimler will inspect and torque all the rear suspension fasteners as needed.a copy of the recall notification is attached. The action taken by daimler resolves this investigation.accordingly, this investigation is closed.

The recall that followed

  1. FCCC — Suspension: Rear09V4580001 December 20093,739 vehicles

Vehicles covered

MakeModelModel years
Thomas Built BusesSAF-T-LINER C22008–2011

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.