This just received from Boeing Customer Support
"I am not aware of any limit that is in effect today. There is considerable maintenance that must be done at 20,000 cycles.
I am aware that Boeing have stated there will be a limit of 30,000 cycles sometime in the near future. If you want to operate above 30,000 cycles you will have to buy the document from Boeing that details the extra maintenance required. If you want to go above 35,000 cycles you must negotiate that with Boeing.
I heard the above in a Boeing meeting. It is not official and I suppose Boeing could change their mind."
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