Six Flags said the ride would be closed while the investigation continues.
At 14 stories high, the Texas Giant has a drop of 79 degrees and a bank of 95 degrees. It can carry up to 24 riders. It first opened in 1990 as an all-wooden coaster and underwent a $10 million renovation to install steel-hybrid rails and reopened in 2011.
Six Flags Over Texas opened in 1961 and was the first amusement park in the Six Flags system. It is 17 miles west of downtown Dallas. The park’s first fatality occurred in 1999. A 28-year-old Arkansas woman drowned and 10 other passengers were injured when a raft-like boat on the Roaring Rapids ride overturned in 2 to 3 feet of water.
There were 1,204 ride-related injuries reported in the United States in 2011 — about 4.3 for every million visitors — according to the National Safety Council’s most recent data. Of those, 61 were deemed serious, the March 2013 report said, and roller coasters accounted for 405 injuries.
Fatalities were not listed in the report, which was prepared for Alexandria, Va.-based International Association of Amusement Parks and Attractions. Also, only 144 of the 383 amusement facilities with rides in the United States responded to the survey.
A 2005 report to the U.S. Consumer Product Safety Commission estimated just over four people died annually on amusement rides from 1987 to 2002. The estimate includes both mobile amusement park rides and fixed-site rides.