NHTSA safety investigation
NHTSA Investigation EA09009
Engineering Analysis · Mack Trucks, Inc. · SERVICE BRAKES, AIR
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 SYSTEM CONTROL VALVES
INVESTIGATION HAS NOT IDENTIFIED A DEFECT.COMPLAINTS HAVE ABATED.SEE CLOSING REPORT FOR FURTHER DETAILS.
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
- EA09009
- Investigation type
- Engineering Analysis (EA)
- Status
- Closed
- Manufacturer
- Mack Trucks, Inc.
- Component
- SERVICE BRAKES, AIR
- Opened
- Jun 18, 2009
- Closed
- Aug 13, 2010
- Associated recall campaign
- None recorded
Vehicles named in this investigation
11 model years across 7 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.