Originally Posted by
DaveReidUK
I'd be surprised if there wasn't - ANA managed it for years:
Yes, I do know they were built like that.
DR, the story at the time was that ANA was going to use them as 'SR' aircraft - flying short haul around Japan - until they got to a certain number of cycles. When they got to the right number of cycles, they'd convert them to long haul (and install the winglets). I thought it was a clever way to maximize the utility of the airframe - maxing out on hours
and cycles.
No idea if that actually came to pass or not.