Investigators are no closer to determining what caused a fatal plane crash near North Stradbroke Island.
The search is still on for key parts of the aircraft three days after the crash.
James Marsden, 60, was the only person on board the ultralight plane when it plunged into the water on Saturday morning 100 metres offshore, about seven kilometres south of Point Lookout.
Recreational Aviation Australia (RA-Aus) is exploring mechanical issues, pilot decision-making and environmental conditions at play in the area at the time of the accident, CEO Michael Linke said.
“We have yet to recover a number of key components of the aircraft which will aid our investigation,” he said.
A RA-Aus investigator attended the scene on Sunday and Monday and is working closely with police on the investigation.
Mr Marsden was a member of the association, a leading authority on recreational aircraft with almost 10,000 members and 3200 registered aircraft.