Hi! Sounds like you might be talking about ceres_libera's "Switch"? It's a long, multi-part story, starting at the Academy. The later chapters deal with the Narada and its aftermath, including the search for survivors.

Here's a link to Ch. 1: http://ceres-libera.livejournal.com/679.html.

She also has it in an e-book format. Hope this helps. :)