Boeing’s first 737 Max 10 will be out of its flight test stall this morning for taxi tests on the runway in Renton. That’s the last set of ground evaluations before the aircraft is ready to fly. First flight rapidly approaching.
Ref: https://twitter.com/jonostrower/status/ ... 4234008578
Katie Bailey posted video of MAX-10 taxiing: https://twitter.com/KPAE_Spotter/status ... 6870226945
And then she posted video of a high-speed taxi test: https://twitter.com/KPAE_Spotter/status ... 2978020356
So it seems the preliminaries are being performed and first flight is imminent.
In viewtopic.php?p=22836639#p22833515 we have:
WoodysAeroimag wrote:7644 66122 N27751 737-10 United Airlines - Ready for its B1 flight later this week. Multiple sources have confirmed to me that its scheduled for Friday with Media involved.

7644 66122 N27751 737-10 United Airlines by 737 MAX Production, on Flickr
What a wonderful photo!
Please post info about MAX-10s's first flight to this thread, and use other threads for other purposes.