Premier Annastacia Palaszczuk is calling for Queensland Rail to apologise to every passenger left trapped on a train for almost three hours but stopped short of calling for heads to roll.
Dozens of people could do nothing but sit and wait, mostly in the dark, on Friday night as their train on the Ferny Grove line came to a standstill between stations.
Passengers vented their anger about their ordeal on social media and reported some on board had resorted to urinating in the carriage because of the wait.
Queensland Rail blamed the fault on a flying fox that had come into contact with the overhead lines.
The incident comes just two weeks after a possum caused a fault that delayed trains across the southeast rail network.
Ms Palaszczuk said the reports of stranded passengers forced to urinate in the carriage were "horrific".
"I would hope that Queensland Rail will personally write to every single passenger on that train and apologise for the inconvenience," Ms Palaszczuk said on Sunday.
Ms Palaszczuk said "from time to time" faults on the network did happen but it was poor communication not letting people know what was going on.
Opposition Leader Tim Nicholls said it beggared belief QR believed the stranding was an important issue when it had given no apology and offered a measly $1.50 refund tickets.
"It's just another rail fail debacle," Mr Nicholls said.
"Little kids having to pee in water bottles is just beyond belief but that is the standard that Queensland Rail and this government now accepts."