If this is true, some of the possible theories such as pilot suicide or aircraft malfunction would seem less likely... (e.g. why would someone perform such manoeuvres and then deliberately crash the plane; how could someone perform these manoeuvres following critical systems failure) Can this claim be debunked?
http://www.heraldsun.com.au/news/mi...883092654?sv=9661028e53d575e597263579ac5026a9
http://www.heraldsun.com.au/news/mi...883092654?sv=9661028e53d575e597263579ac5026a9