MH370: Search vessel Seabed Constructor on its way to Australia for refuelling
From the link:
Liow assured that the search mission was on course and the company had “every right” to switch off their transponder.
“We realise that there are many people tracking the ship’s movement, so when the ship’s transponder is switched off, people will be curious and ask what’s happening.
But it is all normal, and if they want to switch it off, they have every right to do so,” said Liow.
He added that there are two Royal Malaysian Navy representatives aboard the vessel providing daily reports to the DCA on the search.