LOT Polish Airlines Flight 5055 "Good night! Goodbye! Bye, we're dying!"). All 172 passengers and 11 crew died as the aircraft broke apart and crashed. After the crash of the Il-62 operating as LOT Polish Airlines Flight 007, the airline had started replacing its Ilyushin Il-62s with the more modernized Ilyushin Il-62M version. These had newer engines (Soloviev D-30 instead of Kuznetsov NK-8), but both of these turbofan engines shared the same critical point — low pressure turbine and engine shaft design and construction. According to the Polish investigatory commission, the cause of the crash was the disintegration of an engine shaft due to faulty
Airline codes codes were originally based on a two-letter-system and were identical to the airline codes used by IATA. After an airline joined IATA its existing ICAO-two-letter-code was taken over as IATA code. Because both organizations used the same code system, the current terms ICAO code and IATA code did not exist until the 1980s. They were commonly called two-letter-airline-designators. At this time it was impossible to find out whether an airline was an IATA member or not just by looking at its code. In the 1970s the abbreviation "BA" was the ICAO code and the IATA code of British Airways while