NHTSA safety investigation
NHTSA Investigation PE09010
Preliminary Evaluation · Mack Trucks, Inc. · SERVICE BRAKES, AIR:CONTROLS
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
AIR BRAKE CONTROL VALVE
ODI IS CLOSING THIS PRELIMINARY EVALUATION AND OPENING AN ENGINEERING ANALYSIS (EA09-009) TO FURTHER IDENTIFY AND EVALUATE THE VEHICLE ENVIRONMENT AND BRAKE SYSTEM FACTORS THAT MAY BE CAUSING OR CONTRIBUTING TO EXTENDED STOPPING DISTANCE PERFROMANCE IN CERTAIN VEHICLES.
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
- PE09010
- Investigation type
- Preliminary Evaluation (PE)
- Status
- Closed
- Manufacturer
- Mack Trucks, Inc.
- Component
- SERVICE BRAKES, AIR:CONTROLS
- Opened
- Feb 13, 2009
- Closed
- Jun 18, 2009
- Associated recall campaign
- None recorded
Vehicles named in this investigation
12 model years across 8 models
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.