LOT Polish Airlines Flight 5055 accident's cause was similar to that of LOT Polish Airlines Flight 007's crash seven years earlier. After the disaster of Flight 007, the Polish investigatory commission established that its engine shaft disintegration was the result of metal fatigue; improper alloy preparation resulting in a defective mechanism which was less resistant to fatigue; and a faulty design of the engine shaft. Detection of these faults was possible only after complete disassembly of the engine and detailed analysis of all its elements, and as such was beyond the capabilities of aircraft maintenance personnel. These concerns were addressed by the Polish Government's Special
National Airline History Museum was being renamed the National Airline History Museum. This name change allowed it to be better positioned to receive Federal grants and other national funding. The museum announced in March, 2011 that it had teamed up with Kansas City's Roasterie Coffee Shop, with the Roasterie brand being known as "The Official Coffee of the National Airline History Museum" and carrying an image of the museum's DC-3 on its coffee products. The museum maintains five aircraft at the site; two are in flying condition and one is undergoing restoration. An additional corporate mock-up is also on display. There were only 103