NASHVILLE, Tenn. (June 11)—Bridgestone/Firestone Inc. is considering closing a tire plant in Buenos Aires, Argentina, because of continuing losses at the unit the company blames in part on high wages. "With regard to our factory near Buenos Aires, we have requested union concessions which would put us more in line with the two other local tire manufacturers, Pirelli and Fate," said Mark A. Emkes, president of International Tire Operations. "While we were certainly proud to be able to pay the highest wages in the tire industry, current conditions will no longer allow us to do so. In view of losses being incurred at our Argentina location, we need these concessions in order to survive. Otherwise, we will have no choice but to close our Argentina facility." The 70-year-old Buenos Aires plant employs 800 in the production of passenger, light and medium truck, farm and off-the-road tires. Capacity is listed as 7,700 units a day.