Thrillseekers had to be evacuated off the Rainbow's End roller coaster after it stopped near the highest point.
About 15 passengers were escorted off the Corkscrew Coaster at the Auckland theme park this morning after a back-up safety mechanism caused it to stop during the incline.
Rainbow's End CEO Karen Crabb said a subsequent check found there was no fault and the roller coaster was back up and running within 45 minutes.
The "double-check" system was designed to stop on the incline if it detected something could be wrong.