Investigations
DRIVELINE FASTENER FAILURE
NHTSA Recall Query RQ99009 - closed, opened 1999-06-01 and involving the FREIGHTLINER FREIGHTLINER.
NHTSA investigation RQ99009 is a Recall Query opened on 1999-06-01 and currently closed. The subject of record is FREIGHTLINER FREIGHTLINER, which places this file inside the Office of Defects Investigation queue for FREIGHTLINER. Latest activity on this investigation was logged on 2000-11-24 - NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
A Recall Query like RQ99009 evaluates whether a previously issued recall is actually fixing the problem. NHTSA opens an RQ when owners continue to report the original defect after the recall remedy is installed, or when completion rates fall short of the agency's expectations for that risk tier.
Investigators summarized the matter as follows: "ON APRIL 13, 1999, FREIGHTLINER FILED A DEFECT INFORMATION REPORT RECEIVED ON (APRIL 20, 1999) FOAPPROXIMATELY 1,200 FL-50, FL-60, AND FL-70 TRUCKS EQUIPPED WITH DRIVELINE PARKING BRAKES AND MANUFACTURED FROM JULY 1, 199..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time. Related FREIGHTLINER files, listed below, give context on whether this is an isolated concern or part of a broader pattern across the brand.
Investigation Summary
ON APRIL 13, 1999, FREIGHTLINER FILED A DEFECT INFORMATION REPORT RECEIVED ON (APRIL 20, 1999) FOAPPROXIMATELY 1,200 FL-50, FL-60, AND FL-70 TRUCKS EQUIPPED WITH DRIVELINE PARKING BRAKES AND MANUFACTURED FROM JULY 1, 1997, THROUGH MAY 31, 1998. THE FASTENERS CONNECTING THE TRANSMISSION COMPANION FLANGE TO THE PARK BRAKE DRUM AND DRIVELINE CAN LOOSEN. CONTINUED OPERATION OF THE VEHICLE CAN RESULT IN FATIGUE FAILURE OF THE FASTENERS ALLOWING THE DRIVELINE TO SEPARATE. DEALERS WILL INSPECT THE FASTENERS FOR PROPER TORQUE. IF THE FASTENERS ARE FOUND LOOSE THEY WILL BE REPLACED. IF THE FASTENERS ARE FOUND PROPERLY TORQUED, THE NUTS WILL BE REMOVED, PERMALOCK APPLIED AND THE NUTS RE-INSTALLED AND TORQUED TO SPECIFICATION. FREIGHTLINER'S IDENTIFICATION NUMBER FOR THIS RECALL IS FL-230. FREIGHTLINER NOTES THAT "...THE BEGINNING AND ENDING DATES WERE DETERMINED BY THE INCIDENCE CLAIMS," HOWEVER, ONLY ONE REPORT WAS REFERENCED IN THE DEFECT INFORMATION REPORT. FREIGHTLINER INVESTIGATED THE DEFECT BEGINNING IN SEPTEMBER 1998, WHEN FREIGHTLINER RECEIVED A REPORT OF COMPANION FLANGE FASTENERS LOOSENING AND IN SOME CASES SHEARING OFF. IN DECEMBER 1998, AN AUDIT OF THE ASSEMBLY PLANT FOUND THAT THE COMPANION FLANGE FASTENERS WERE IMPROPERLY ASSEMBLED IN THAT THE FASTENERS WERE UNDER TORQUED AND NO PERMALOCK WAS APPLIED. ON MARCH 23, 1999, FREIGHTLINER DECIDED TO CONDUCT A SAFETY RECALL. THE PURPOSE OF THIS RQ IS TO INVESTIGATE THE SCOPE, CHRONOLOGY, AND THE TIMELINESS OF FREIGHTLINER'S ACTIONS.
About This Investigation Type
A Recall Query (RQ) evaluates the effectiveness of a previously issued recall. NHTSA opens an RQ when consumer complaints suggest that a recall remedy may not be adequately addressing the safety issue, or when the recall completion rate appears insufficient.
Other FREIGHTLINER Investigations
EVDM connector plate separation
Halogen Headlights May Cause Fires
Trolley bus circuit breaker fires
Rear Wheel Speed Sensor Failure
Intermittent Loss of Power Steering Assist
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. about how PlainCars sources NHTSA data.
Read our methodology - how this data is sourced, computed, and verified.