puff
I think the GE's on the 744 were all about thrust and the 744ER design.
Checks every 20 cycles, you would want to be doing them at Sydney and with a backup plan for when you find a dud. It cruels your fleet.
Maybe having spare engines and a spare A380 on the ground in Sydney being rotated in and out of service would be the only way to do it, having your schedule based on only 4 a/c available at best at any one time. Otherwise you could have more drama's scattered around the globe again.
Not exactly a smart and efficient way to operate
