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 accounting or prefix code. This number is used on tickets as the first three characters of the ticket number. The ICAO airline designator is a code assigned by the International Civil Aviation Organization (ICAO) to aircraft operating agencies, aeronautical authorities, and services related to international aviation, each of whom is allocated both a "three-letter designator" and a "telephony designator". These codes are unique by airline, unlike the IATA airline designator codes (see section above). The designators are listed in ICAO Document 8585: "Designators for Aircraft Operating Agencies, Aeronautical Authorities and Services". ICAO codes have been issued since 1947. The ICAO