That is the original design datao, the lead A320 was around 48000 cycles/80000 hours in 2011. They already have in place ESG1 which gives the air frame 60000 cycles/120000 hours. Most A320s would be around 25 years old reaching that value, and probably scrapped.
ESG2 was being worked on, it maybe approved already, 90000 cycles, 180000 hours.
Some indication of how maintenance savings are being realised are in this fair use excerpt http://www.asianaviation.com/article...4/Airbus-plans-A320-life-extension
"A320s are subject to industry-standard MSG-3 provisions, under which historic %u2018A%u2019 and %u2018C%u2019 maintenance check intervals have become flexible. Tasks now carry FC, FH
, or calendar-time maximum intervals that permit operators to optimise MRO
planning, with the A- and C-check labels still used generically.
According to Airbus, A320 operators adjust maintenance intervals to suit their own schedules. For example, one has adopted a 20-month C-check cycle, distributing six-year tasks between 60- and 80-month checks to ensure maximum aircraft availability, while another operator uses 24- month C checks to save one heavy-maintenance shop visit every six years.
Good "in-service experience feedback" from operators has contributed to the introduction of extended A320 scheduled-task intervals that Airbus says have reduced maintenance costs by up to 70 percent since service entry in 1988. For example, FH
intervals for C-check equivalent work have grown by a third, while the frequency of heavy-maintenance shop visits has fallen by half and the typical period between A-check equivalent jobs has increased by 70 percent.
Specifically, maintenance tasks scheduled in the original 350-FH A-check may now be performed at any time up to maximum intervals of 600 FH
, 750 FC, or 100 days. Likewise, the 15-month C-check interval has become a 20-month, 6,000-FH, or 4,500-FC minimum frequency and permitted intervals between heavy checks have grown from four and eight years to six and 12 years.
A further 25 percent increase in A-check intervals (to 750 FH
, 750 FC, or 120 days, or a combination) has been agreed by the A320 Industry Steering Committee (ISC), while airworthiness authorities %u2013 led by the European Aviation Safety Agency (EASA) and US Federal Aviation Administration (FAA) %u2013 have approved the Maintenance Review Board Report (MRBR) adopting the longer intervals, which now appear in the A320 maintenance-planning document.
The ISC launched "an evolution exercise" in 2009 under which it might extend C-check intervals by a further 20 percent this year. The resulting 24-month/7,500-FH/5,000-FC interval, if subsequently approved, would enable maintenance planners to synchronise such activity with the existing six- and 12-year heavy-check intervals."
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