Police say it could take weeks or months to determine what caused last week's plane crash near Braidwood.
Picton businessman John Corbett died instantly when his light aircraft nose-dived into the ground about 11.30am last Tuesday, August 6.
The Australian Transport Safety Bureau and Monaro Police Area Command are investigating the incident.
Acting Inspector Ben Bowles told the Advertiser today that it would take "some time" to find out the circumstances surrounding the crash.
"A report is being prepared for the Coroner," he said.
Mr Corbett, 58, was attempting to land at an airstrip on a property near Nerriga Road.
He was in radio contact with people on the ground before he circled and the single-engine XL-2 Liberty aircraft turned nose-down.
He had flown to Moruya from Camden on Monday night and was returning home last Tuesday.