Reported Oct 15, 1991684 vehicles affectedCOOPER TIRE & RUBBER CO.
The defect
An unauthorized and unnamed material was introduced into the truck tire base stock, and tires were built and cured with the miscompounded truck tread base material.
The risk
The miscompounded base can result in poor adhesion of thetread base to the carcass and tread separation could result, causing tireblowout and loss of vehicle control.
System: tires.tire description: light truck and motorhome tires made between september 29 andoctober 5, 1991 (serial week 391) with tuber ID markings AT2, AT3, CT2, or et2.dot identification: upwycy3391, upwyct6391, upwycb8391, upwycb2391, upxjcb8391,upxkcb8391, up7tcfd391, upnvbud391, upwttu8391, upwybue391, upwyfdm391,upxjbch391, upxkbch391, up3lbcj391, upwyhdh391, upxjhdh391m, upxkhdh391,upwyhlc391, upwyehj391m, upxkeee391, upwydcw391.note: the cooper tire and rubber company IS the manufacturer of these tires andthey have notified this agency that all affected tires have been recovered andaccounted for prior to sale to the public.