Minerva watched Ariana do the spell and then get excited. "Well that is a start." she said encouraging, then she thought of something and put up her hand. "Professor since the train was built by muggles, would the repair charm fix everything or would even wizards need to do some manual work on the train if it was broke from the crash?" if that was the case then there might be something they need to fix that way as well. Looking at the train she smiled, "Well the next thing after we figure out if we have to manually fix it would be to put some of the charms on it." Pointing her wand, "Protego Caelum" Then she looked at Ariana, "Well hopefully that will help it against anymore snow and ice. What other charm would be on it to help fix it?" She was trying to think of what else they could do to help it work.