Well before the flight was due to depart, the company agent at Mabuiag Island endeavoured to warn the operator that the strip was wet and unsuitable for operations. This attempt to communicate failed due to a local fault in the Telecom system. The pilot was aware of a previous recent accident where a pilot landed short of the runway lip. When he arrived, he assessed the strip as suitable and landed well into the strip. By the time that he discovered that the strip was slippery, it was too late to go around. When it became obvious that he could not stop within the confines of the strip by using normal braking, he attempted a ground loop. The aircraft slid sideways off the end of the strip onto a beach.