The malfunction occurred on the same day aswho died on January 2 alongside three passengers in a helicopter crash on the Gold Coast.
The company remained temporarily closed on Friday,but Sea World and its rides continued to open in the past week.
Umbrellas were used to shield stranded passengers on the ride until they were freed.
The ride,which has a 909-metre track,goes 80km/h,reaches 32 metres and also travels backwards.
Comment has been sought from Village Roadshows,which owns Sea World.
The attraction has been temporarily closed.
In September,,which is also owned by Village Roadshows,needed to be rescued by firefighters after becoming stuck at a high point on the Scooby-Doo Spookycoaster ride.
The group were uninjured,but were stuck about 10 metres in the air until firefighters rescued them.