As engines become increasingly reliable and stay longer on-wing, the battle over spare parts is becoming a sensitive sparring ground as manufacturers try to guarcla traditional source of income and maihtehance-sawy airlines try to cut costs.The stand-off is set to become more intense in the U.S. where Delta Airlines' Technical Operations maintenance arm is exploring a raft of new technologies for engine overhaul and repair, some of which is currently performed by the original manufacturers, as part of efforts to cut costs and boost revenue.
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