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
Brand it" attitude. Thus, this form of brand identification attracts customers who also share this same value. Even more extensive than its perceived values is a brand's personality. Quite literally, one can easily describe a successful brand identity as if it were a person. This form of brand identity has proven to be the most advantageous in maintaining long-lasting relationships with consumers, as it gives them a sense of personal interaction with the brand Collectively, all four forms of brand identification help to deliver a powerful meaning behind what a corporation hopes to accomplish, and to explain why customers should choose