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
American Eagle (airline brand) combined American Eagle branded fleet consists of the following regional jet aircraft: • In January 1988, Nashville Eagle became AMR Corp.’s first and only start-up airline, using equipment acquired from Air Midwest. • Business Express was acquired by AMR Eagle Holdings Corporation in March 1999, although it never flew under the American Eagle brand before being fully integrated into American Eagle Airlines, Inc. in December 2000. The American Eagle brand, through its various regional and commuter airline partners, operated a variety of twin turboprop aircraft over the years including the following types: Piedmont Airlines, a regional carrier wholly owned by