First...the launch is on hold while they look at an overheating issue with the Centaur interstage motors. Launch is likely not going to be on-time, but they have a 2-hour launch window, so it still may happen of they get the issue taken care of in time.
Secondly, a correction. The engine on the Atlas V 1st stage is the RD-180, NOT RL-150. Dunno where I got that one.
looking at sending a team out to the pad, will that fit in the window?
They are possibly discussing going out to the pad to see if a manual valve is in the proper configuration.
How’d you like to go up next to a fully-fueled rocket to open her up and see what’s wrong? I assume they pay good money for that.
Maybe you were thinking of the RL-10 engine.