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
Airline (brand) Airline brand. The Eastwood reissued guitars are built with chambered mahogany bodies as opposed to the hollow fiberglass (Res-O-Glas) bodies used for the original made by Valco. This difference in body material gives the reissue a more traditional electric guitar feel and tone, whereas the original Airline is noted for its unconventional playing feel and response. The reissue also has an adjustable truss rod, accessible from the headstock, while the original had a non-adjustable steel reinforced neck. The aesthetic differences between the original and the reissue include: different tuning heads, (the newer model having greenish knobs, as opposed to the