Unfamiliar with the unregistered 406-MHz beacon that did not have GPS, two fishermen struggled through crocodile-infested waters after their boat flipped while they slept, and did not activate it until they reached the shore.
AMSA in Canberra was alerted by satellite, but because the beacon was not registered, it took a further forty minutes to resolve their position and send the Darwin Dornier and a CareFlight helicopter to rescue the dehydrated men who suffered from exposure but were otherwise unharmed.
“Those waters are full of lizards and biters. We thought we were finished.”
Read more here:
http://www.abc.net.au/news/2014-10-22/fishermen-rescued-from-croc-infested-waters/5832954