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
DBA (airline) 737s for a year. In return BA would receive 25% of any profits or proceeds from a sale until June 2006. It was rebranded as dba. In March 2005 dba announced its intention to acquire rival airline Germania Express (gexx) which would create Germany's third largest airline after Lufthansa and Air Berlin. The "gexx" brand was phased out on the former airline's services, along with its Fokker 100 aircraft which dba has assumed the lease of. dba submitted a binding bid for ailing Greek national airline Olympic Airlines in April 2005, but later withdrew that bid. In the fiscal year