Northern Territory police say three bodies have been found during the search for a light plane that went missing after leaving a remote cattle station on Monday.
A major search began after the plane failed to reach its destination south of Darwin after leaving Bullo River Station on Monday afternoon.
The search was launched after the pilot, Stuart Sceney, 45, sent a radio message about bad weather.
Mr Sceney was on the plane with his 53-year-old wife Karmi Dunn and their two daughters, aged 12 and 15.
Acting Commander Mark Christopher says late on Monday afternoon a female body was found washed up on a beach in the search area near Cape Ford.
Forensic experts were called in to confirm the identity of the body, but it is believed to be Ms Dunn.
Police later confirmed they have found the bodies of a man, a woman and another female.
A search will resume for the fourth body later this morning.
The family was returning to Darwin after spending the Easter weekend at Bullo River Station.
Search and rescue crews have been searching an 1,800 square kilometre area between Cape Ford and Point Jenny.
Shaun Hardy, the president of Darwin's Saint Mary's Football Club, said Mr Sceney was a former player and committee member and had flown to remote communities often for work as an electrician.
"As far away as Broome, and across the north into Queensland and the remote Territory, so he's certainly very accustomed to flying in Territory conditions," he said.