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
Nordica (airline) Nordica (airline) Nordica is the state-owned Estonian flag carrier headquartered in Tallinn and based at Tallinn Airport. It was formed after the 2015 bankruptcy of the previous flag carrier Estonian Air. The company was founded on 25 September 2015 by the decision of the Estonian Government, following the liquidation of the previous national carrier, Estonian Air. Operations started on 8 November 2015. Its first flight left Tallinn for Amsterdam on 8 November 2015, the first flight with Estonian service on the same route was on 20 January 2016. On 30 March 2016, the new brand name Nordica was announced. Erik