JRCC received an alert with suspect position data from an Australian EPIRB that had previously been owned by another user.
Aircraft reported hearing the beacon, and a search and rescue plane investigated, soon joined by a helicopter and vessel already helping in the search for a missing kite surfer.
The helicopter sighted four people in the water wearing life jackets, and all were subsequently recovered by the diverted rescue vessel.
Read more and view video footage here:
https://au.news.yahoo.com/thewest/wa/a/30226062/four-rescued-after-wave-capsizes-cruiser/