Trailer hitches: fifth wheel assembly
- Component
- Trailer hitches: fifth wheel assembly
- Manufacturer
- GRUMMAN ALLIED IND., INC.
- Vehicles affected
- 218
- Reported to NHTSA
- 1985-12-20
- Owners notified
- 1985-12-16
Defect description
THE REINFORCING PLATES WERE OMITTED FROM THE TRAILER PIN BOX ASSEMBLY, WHICH IS USED TO HOLD THE FIFTH WHEEL ASSEMBLY TO THE TRAILER. CONSEQUENCE OF DEFECT: A FATIQUE FAILURE OFF THE PIN BOX ALLOW THE FIFTH WHEEL ASSEMBLY TO SEPARATE FROM THE TRAILER. THEREFORE, THE TRAILER WILL FALL OFF THE TOWING TRUCK AND ROLL UNCONTROLLED ON THE ROADWAY. THIS MAY CAUSE AN ACCIDENT.
Manufacturer remedy
REPLACE THE PIN BOX ASSEMBLY IF REINFORCEMENT PLATES ARE MISSING.