Sounds like a technical nightmare... What an extraordinary feat to have diagnosed all this and put it to rights in mid-Atlantic within such a limited number of hours, and to get her back to 30 knots so soon!
Had she drifted far in the interim?
The press people must have had a field day... when power was restored for their use.

I wonder how the passengers were affected, and whether there were a lot of complaints. Had I been there, I suspect I would have found it quite exciting. I wonder whether the bathrooms too were out of action -- but only for eight hours, that would have been quite bearable. Passengers would have worried more about the kitchens!