How to repair cylinder mesh with misplaced vertices? I realized, for the first time, I now have the skill to visualize and manifest a 3D object of some complexity!

Do you see this rocket?



It looks pretty cool.  But, nobody would put this thing on the launchpad with an screw-up like this on it.


This thing started life as a cylinder, but and was then highly processed.  But, I don't know an efficient or elegant way of healing this.  I could do it manually - vertex by vertex - but there must be a better way!


Thanks for any help in advance....
If your rocket is symmetrical you could delete the upper half of the vertices, add a mirror modifier and apply (for an easier selection, I would isolate the tip).

You are right, Gunslinger, here is a picture: