The Partenavia unexplained accident at Essendon in 1978

[Seagull V]

And then there was this incident in January 1992. See http://www.atsb.gov.au/publications/investigation_reports/1992/aair/199201201/


While the title "Hard landing" is quite misleading there are some aspects of this event that appear to relate to original post i.e. Loss of elevator control.