Brisbane Airport experienced significant delays for hundreds of passengers due to a blackout caused by a fault in two substations around 5:20 am on Tuesday, with power restored by 6:20 am. The blackout, which lasted about an hour, led to long lines and chaotic scenes in the domestic terminal, compounded by heavy fog that affected ground operations. Qantas and Jetstar passengers were particularly impacted as staff worked to clear the backlog, prompting passengers to express their frustrations on social media.