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
Darwin Airline airlines: As of September 2017, the Darwin Airline fleet included the following aircraft: Darwin Airline Darwin Airline SA was a Swiss regional airline with its head office in Bioggio, Lugano flying under the brand name Adria Airways Switzerland. It operated scheduled domestic and international services in some western European countries. It used the brand name Etihad Regional from January 2014 to July 2017, when Etihad Airways sold its 33% stake to the owner of Adria Airways. It previously also operated flights on behalf of Alitalia. Its bases were Geneva Airport and Lugano Airport. In November 2017, the Swiss authories suspended