Article on Adelaide Now by Tom Zed 24 April 2009
Bus commuters were left stranded on bus routes because an employee forgot to assign drivers on the company roster. The error was not picked up until the company received a phone call. It was fixed as soon as they found out but over an hour went by without buses.
Apparently there was a "unique set of circumstances" involving the school holidays and an AFL game between Port Power and St Kilda at AAMI stadium happening that evening.