Being lost, yet only 20 minute recovery doesn't make any sense. To be that close the ship would be visible to the helo, there's also a big mast strobe on most of those things. This ain't WW2 where they use mk 1 eyeball to find shipping, and 20 minutes from mother by surface craft that were launched can't be far. Sounds more like something time critical happened that they rather put down under control rather than risk losing control trying to make it a short distance back to ship. Hydraulics, oil loss, fuel feed, flux capacitor or thronomister, something we may never know. Maybe it brushed against the same object the Connecticut hit.