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JT9D series, PW4000-94, CF6-50 & CF6-80 series maintenance cost comparison,Issue 26 Dec 2002/Jan 200

The JT9D, PW4000, CF6-50C2 & CF6-80C2 series are the most numerous widebody engines and power the same and similar aircraft types. Maintenance costs analyses for each type have been updated and reserves compared between the four families.

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