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
No. 1586 (Polish Special Duties) Flight especially difficult, lasting up to eleven hours. The flight was disbanded on 7 November 1944 at RAF Brindisi, Italy to resume operations as No. 301 Polish Bomber Squadron. No. 1586 (Polish Special Duties) Flight No. 1586 (Polish Special Duties) Flight was first formed at RAF Derna, in Libya on 4 November 1943, equipped with Handley Page Halifax II special duties aircraft. The origin of 1586 flight was the remnants of 301 (Polish) Squadron after disbandment on 31 March 1943 by the Polish HQ due to lack of staff and trained crews. Volunteer crews and aircraft formed C Flight of 138