UPS Airlines has grounded its MD-11 planes indefinitely for inspections and possible repairs after a deadly crash earlier this month. An internal memo from UPS Airlines president Bill Moore on Wednesday stated that the fleet will be grounded as they work to meet Federal Aviation Administration guidelines. The process was expected to take weeks but may now take several months. An MD-11 plane crashed Nov. 4 in Louisville, Kentucky, killing 14 people. UPS intends to rely on contingency plans to deliver for customers throughout the peak season. Boeing took over as the manufacturer of MD-11s in 1997 and is working to help operators meet FAA requirements.