The ship searching for missing Malaysia airlines flight 370 is today docking in Fremantle to refuel and resupply.

At the same time, a power struggle is opening up in the Malaysian led official investigation into the disappearance of the airliner.

Four civilian air crash investigators, including the lead authority on analysing black box flight data and voice recorders, have been sidelined.

The Malaysian military wants to replace them with seven fighter and helicopter pilots from the Royal Malaysian Airforce, with far less crash investigation experience.

