Park Says Mechanical Issues Did Not Cause Roller Coaster To Stall

VALLEJO, Calif. (AP) — Officials at a Northern California theme park say they have ruled out mechanical problems for the stalling of a roller coaster carrying a dozen people about 150 feet above the ground.

The riders were stranded upright aboard the new Superman Ultimate Flight roller coaster at Six Flags Discovery Kingdom in Vallejo for less than 90 minutes Sunday afternoon before the roller coaster was restarted.

Park spokeswoman Nancy Chan said crews on Monday found no mechanical problems with the ride or track.  The ride is computerized and they have not ruled out a computer issue.

They are still investigating what caused the coaster to stall and plan to run its cars later in the day.

None of the stranded riders was injured.

(TM and © Copyright 2012 CBS Radio Inc. and its relevant
subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2012 CBS
Broadcasting Inc. Used under license. All Rights Reserved. This
material may not be published, broadcast, rewritten, or
redistributed. The Associated Press contributed to this report.)