CARACAS, Venezuela (Oct. 24)—Nineteen percent of 367 randomly sampled, recalled Wilderness AT tires in Venezuela are defective, Ford Motors de Venezuela claims. The proportion of tires with a tread separation of one inch or greater was 21.7 percent among the 16-inch Wilderness tires and 16 percent among the 15-inch, according to a Ford Venezuela spokesman. This is the auto maker´s latest effort to prove its contention that the tires alone—and not the Ford Explorers on which most of them were mounted—were responsible for the accidents which claimed the lives of 46 Venezuelan motorists. A spokeswoman for Bridgestone/Firestone Inc. in Nashville, Tenn., said the tire maker was still preparing a statement in response to Ford´s claims. Ford began recalling 142,000 Wilderness tires on approximately 28,000 Explorers in Venezuela last May, and said it expects to complete the recall this week.