Pretty quick.

Hiring is ongoing for the Everett production facility which is pretty much complete. MAX 10 will be manufactured solely in the Everett facility. Again, there's new leadership and they are very serious about getting this plane certified and into production ASAP. The plant will be operational before the certification is complete as Boeing is very positive on this as a result of the ongoing flight testing, like I said a major test point was cleared in January of this year. It was the principle hangup for the system. They still have more test points to clear but this latest one was pretty significant. The Everett facility will be primed and ready to crank out airframes once FAA certifies. There will not be much if any production lag from certification to the first production jets start rolling off the line in Everett.

Figures I saw were early 27 (like Q1).