Wednesday had engineers on the pad working on the TSMs (Tail Service Masts). Right now, Pad Clear! So next step will be prop load. So far, so good.

Remember: Prop load is the next milestone. No assurance of an actual Static Fire (but if not, would count as WDR).#OnStepAtATime https://t.co/nZg7BGNu1j

— Chris Bergin - NSF (@NASASpaceflight) January 11, 2018