When my #1943 first arrived 1 step fell out on one pilot and 1 step was broke on the other pilot. CharlesRo promptly sent me another pilot and it arrived with broken step (same one I needed). They had Lionel send a pilot and it had an issue but I was able to glue.
The new SD70Ace Styrofoam boxes are not the same as earlier production runs. They have padding in places but it is thinner and more flexible. I'm starting to wonder if they were originally packed with the Lionel ribbon strips located along the steps and whenever somebody lifts it is causing the steps to buckle and break. I don't recall my ribbons being there but the loco could be handled between factory production and home delivery.
The front and rear pilot already show unavailable from Lionel.
BTW, the staircase is tapered so the steps are not all the same.