On 7 February 1969 the train was involved in the Violet Town railway disaster, when the southbound Southern Aurora collided head on with a northbound freight train, resulting in eight deaths and the destruction of two S class locomotives and seven carriages.[1][7][8]
With declining passenger numbers, it was decided to combine the Spirit of Progress and Southern Aurora into one train, the Sydney/Melbourne Express. The Southern Aurora ran for the last time on 2 August 1986.[1][9]
From December 2017 four NAM Twinette carriages were restored at the Lithgow State Mine Heritage Park & Railway on behalf of Vintage Rail Journeys.[13] From September 2019, two LAN Roomette carriages, one NAM Twinette carriage and one MHN Luggage were restored at the Goulburn Rail Heritage Centre (GRHC) on behalf of Vintage Rail Journeys.[14][needs update]