LOT Polish Airlines Flight 7 increased engine wear, since the engines were under greater load. NK-8-4 engines were not reliable enough. Warranty service life was only 5000 hours, and about half of LOT engines failed after 2000–3000 hours. Because of this, Polish pilots often called the Il-62 "flying coffins". In spite of the low reliability, the airline decided to increase overhaul life intervals to reduce the frequency of repairs, which were carried out in Soviet factories and quite expensive. LOT sent a letter to the Ilyushin Design Bureau containing the results of a test in which it was found that the engines could operate normally
Azimuth (airline) certificate (AOC) giving the airline permission to commence flight operations. Domestic routes to Kaliningrad, Chelyabinsk, Volgograd, Astrakhan, Surgut and Gelendzhik, as well as international routes to Yerevan, Prague, Frankfurt, Istanbul and Tel Aviv are planned to enter Azimuth's route network by 2021. On 7 December 2017, Azimuth officially shifted all flights from Rostov-on-Don Airport to Platov International Airport. Azimuth officially started international flights on 29 September 2018 when it started offering weekly flights to Bishkek, Kyrgyzstan. On 1 October 2018, Azimuth had its first flight to Yerevan, Armenia, starting a schedule now offering three services a week. The airline, which