NHTSA Campaign Id 91V112000; Date: Jun. 25, 1991
1988 Mack CH; 1989 Mack CH; 1990 Mack CH; 1991 Mack CH; 1988 Mack CL; 1989 Mack CL; 1990 Mack CL; 1991 Mack CL
Component: Seat Belts:front:anchorage
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 4,000
Lap and shoulder seat belt arrangement for fixed (non-suspension) seats does not meet the seat belt loading requirements of fmvss 210. The inboard clinch nut in cab sill, where the buckle for the shoulder and lap belt is mounted, pulled out of the sill during the tests. Consequence of defect: if seat belt anchirage fails, the seat occupant faces an increased risk of injury in an accident or sudden stop.
Relocate the inboard seat belt mounting from top of the sill to the forward flange of the sill on the cab floor, and add a 3mm fillet weld around the 2 inboard clinch nuts.
System: safety belt anchorages; fmvss 210. Vehicle description: heavy trucks.
Date Owners notified by Manufacturer: Oct 11, 1991
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