The discovery follows the recovery of unidentified human remains on Thursday last week.
“Defence’s priority remains the recovery of our soldiers and returning them to their families,” the Department of Defence said in a statement.
“Defence remains in close contact with the families and is updating them on the operation as new details become available.”
The black box along with the aircraft wreckage has been released to the Department of Defence for further investigation.
Subscribe to The Briefing, Australia’s fastest-growing news podcast on Listnr today. The Briefing serves up the latest news headlines and a deep dive into a topic affecting you. All in under 20 minutes.