On July 29, 1983, an accident occurred in which one park employee was killed and several injured during a test run of the coaster. A new train was being added to increase ride capacity due to the large crowds. This process involves moving a section of track (transfer track) and manually moving a train from a storage / work area up into the station. The transfer track is moved back to the running position and the roller coaster capacity is doubled by running 2 trains. In this accident the manager who took charge of the procedure forgot to move the track back into the running position. The train was loaded with employees and dispatched. The train went back through the storage shed, where it careened off the end of the work track killing an employee and injuring 14 others on the train. No one on the ground was injured.