"Where I had been standing,no one in that area survived. Someone was looking after me that day,"Mr Garner recalled.
On Wednesday morning,survivors,victims'families and those who rescued passengers will be joined by NSW Premier Mike Baird,Transport Minister Andrew Constance and NSW Governor David Hurley at Granville to commemorate the 40th anniversary of the train disaster.
"It's a chance to remember those who were not as fortunate as me,who were seated where I was standing and lost their lives through no fault of their own,"Mr Garner said.