A helicopter emergency locator beacon was set off accidentally on Saturday, prompting a second warning from police in only two weeks.
West Coast police search and rescue co-ordinator Michael Tinnelly said today the beacon on board a helicopter was activated while the machine was having work done to it.
"Luckily we were able to make a phone call to the owner of the beacon and we found out that the helicopter was still on the ground and there was not an emergency."
Mr Tinnelly said that once the owner realised the beacon had been activated, he turned it off.
However, Mr Tinnelly stressed that "just turning off the beacon was not enough; if a beacon is set off accidentally the owner should also contact police and the Rescue Co-ordination Centre".