UPS MD-11 Crash Near Louisville Kills 9

The UPS cargo plane that crashed was a 34-year-old MD-11, a model still in use due to its long lifespan and the nature of cargo operations, which are less affected by fuel efficiency concerns. The crash does not appear to be related to the aircraft's age, and the MD-11, originally introduced in 1991 and converted to a freighter in 2006, remains in service with several cargo carriers despite being largely phased out of passenger service.