United States 85V167000
GRUMMAN ALLIED IND., INC.
The problem
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.
What owners should do
REPLACE THE PIN BOX ASSEMBLY IF REINFORCEMENT PLATES ARE MISSING.
Units 218