WOLVERHAMPTON, England (Oct. 24)—Goodyear has put workers at its Wolverhampton plant on notice that the continued production of medium radial truck tires at the 74-year-old facility "is under serious threat." Goodyear has stated several times in the past nine months that the factory is not competitive with other company plants throughout Europe, and recent efforts—including reduced shifts—have failed to produce any "significant productivity improvement." Daily production of truck tires at the site already has dropped by more than a third to 1,400 units, accompanied by as many as 500 job cuts. Goodyear said the lack of improvement at the factory, compounded by the global downturn in demand for truck tires and the current economic climate, will force it to make a decision on the plant in the "immediate future." The company did not say how many jobs would be affected. The 2,700-employee facility also makes passenger, light truck and farm tires.