Japan Airlines Corp. is tackling a key cause of its unprofitability—its immense fleet of 70 Boeing 747s. Seeking higher yields and lower costs, the airline's 2007 fleet plan accelerates retirements of 747-200s and -300s as more -400s are converted to freighters. Long-haul routes, especially to Europe, are being slimmed down but the carrier, Asia's largest, is building up services closer to home, piling on flights to Asian markets such as China and planning to add more when new runway capacity becomes available in a few years.
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