NHTSA safety investigation
NHTSA Investigation PE04074
Preliminary Evaluation · Daimler Commercial Buses NA · ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
An investigation is not a finding that a defect exists.
NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
What NHTSA is examining
The agency's own description of the inquiry, quoted as published
HYDRAULIC FAN FITTINGS LEAKING
THIS INVESTIGATION WAS OPENED AFTER ODI VISITED A TRANSIT FLEET FACILITY AND OBSERVED A BUS THAT HAD EXPERIENCED AN ENGINE COMPARTMENT FIRE.AFTER INSPECTING SIMILAR MODEL BUSES, SIX OTHER BUSES WERE FOUND TO HAVE LEAKING HYDRAULIC HOSES, RESULTING IN OILSPRAYINGINTO THE ENGINE COMPARTMENT AND ONTO HOT ENGINE EXHAUST COMPONENTS. ODI OPENED THE INVESTIGATION TO GATHER SPECIFIC INFORMATION CONCERNING THE HOSES, FITTINGSAND TO UNDERSTAND THE INFLUENCE OF HYDRAULIC LEAKAGE AS A CATALYST FOR BUS FIRES. AS A RESULT OF ODI?S INVESTIGATION, ORION HAS AGREED TO INITATE A SAFETY RECALL TO REPLACE THE ORIGINAL RIGID PIPE DESIGN WITH A FLEXIBLE HOSE DESIGN.A COPY OF THE RECALL IS ATTACHED. THIS ACTION RESOLVES THE ISSUES RAISED BY THIS INVESTIGATION. ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
An investigation is a separate record from a recall and from a manufacturer communication. A manufacturer campaign to repair a safety defect or a failure to meet a federal safety standard.
Investigation details
Identifiers, dates and outcome as recorded by NHTSA
- Action number
- PE04074
- Investigation type
- Preliminary Evaluation (PE)
- Status
- Closed
- Manufacturer
- Daimler Commercial Buses NA
- Component
- ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
- Opened
- Nov 2, 2004
- Closed
- Dec 17, 2004
- Associated recall campaign
- 04V544000
Vehicles named in this investigation
3 model years across 1 model
Being named here means NHTSA included the vehicle in the scope of its inquiry. It is not a statement that these vehicles have a defect.