A helicopter pilot has been killed in a crash in the remote north-west of Western Australia. The 48 year old female pilot from Brooking Springs cattle station failed to return from Big Rock Dam about 55km away when her partner raised the alarm.

The wreckage of the Robinson 22 helicopter was found approximately 3.5km from Fitzroy Crossing in Western Australia's remote north.

The Air Traffic Safety Board is assisting forensic police with investigations.