Boeing has many internal issues with its planes currently but, when it comes to the 777X program, GE is the one that is causing the problems. The lack of engines for the test program means the jets are on the ground. Meanwhile, the production line continues to turn out the airframes at the rate original scheduled. Consequently, there are stored jets around Paine Field. The first two jets were turned out in house colors and have appeared on the blog. Meanwhile, a couple of white jets have appeared and they are stored on the flight line.
The latest two jets I have seen are not even painted. They are in the protective film the airframe is built in which looks a bit like primer. Stored on the airfield, they will get engines at some point and then go to the paint shop. In the interim, they have ballast attached to the engine mounts. The first time I saw one, I thought it was another KC-46 being stored until the fin caught my eye and I realized it was a 777X.