Nowhere on that giant ship is a GPS locator?
There are reports that El Faro lit off its EPIRB, but it went silent after only a few minutes.
There should have been some EPIRBs in “float-free” mounts, outside.
But if the ship rolled and sank, they might have all gone down with her.
An EPIRB pinger can’t transmit through deep ocean water.
Here is a great thread full of these types of discussions by very knowledgeable folks.
http://www.cruisersforum.com/forums/f122/safety-of-ships-lifeboats-in-major-storms-153992.html