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
Wingo (airline) would fly under Copa Colombia’s call sign and codes, and would mostly take over Copa Colombia's routes, adding flights from Bogota and Medellin to Panama Pacifico airport. Copa said that Wingo would offer one class of seats and would charge for baggage, food and beverages, seat assignments, and priority boarding. Wingo commenced operations on 1 December 2016 with a flight from Bogotá to Cancún. Wingo served the following destinations as of March 2017: As of March 2017, Wingo used the following aircraft: Wingo (airline) Wingo is a low-cost airline within an airline brand owned by Copa Holdings, S.A.. Copa announced