UPS Airlines halts MD-11 flights after fatal crash - UPS Airlines has grounded its MD-11 planes indefinitely for inspections and possible repairs following a tragic crash that claimed 14 lives. The fleet will be out of commission for weeks, possibly months, as they strive to meet FAA standards. With peak season looming, UPS is scrambling to ensure deliveries with contingency plans in place. Boeing steps in to assist operators in meeting safety regulations. What caused the fatal crash in Louisville, Kentucky?