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 condition is very time consuming and expensive. Although it can be easily viewed by the public, it is open for public access for special events only. A full-motion, working Lockheed L-1011 Tristar simulator was donated to the museum by Orbital Sciences Corporation; it was never installed and later removed from the museum's possession and transferred to a site in California . The museum also has a cockpit procedures trainer for the Lockheed L-1011 Tristar, originally belonging to Trans World Airlines. A general purpose, custom-built flight simulator occupies part of the main foyer of the museum. National Airline History Museum The