In a rare event, Watco for a period in October 2021, assigned C502 & C503 to the North Quay container shuttles. The first time C Class have worked trains into Fremantle.
Finally a sunny day and becuase the GML is in for a A service, C503 leads C 502 on the container train to Fremantle - not a common sight in Western Australia
In the final hours of light, C502 & GL104 proceed thru Cockburn Junction at restricted speed with 4351 sulphuric acid, headed towards Forrestfield yard.