Emergency personnel are on the scene at Six Flags Over Texas in Arlington, Texas, after a woman died on the Texas Giant roller coaster, background left, on Friday, July 19, 2013. (AP Photo/The Dallas Morning News, Tom Fox)
ARLINGTON, Texas (AP) -- Six Flags' president says the amusement park company is using "both internal and external experts" to investigate the roller-coaster accident that killed a woman at its Dallas-area park.
Jim Reid-Anderson offered no details about the investigation during a conference call Monday to discuss the company's earnings. But he said the company was using experts from within and outside the company.
Reid-Anderson said Six Flags officials were joining the call with "heavy hearts."
Rosa Ayala-Goana was killed when she fell Friday from the Texas Giant roller coaster at Six Flags Over Texas in Arlington, a western suburb of Dallas.
Witnesses told authorities that Ayala-Goana expressed concern moments before the 14-story ride began that the safety bar had not completely engaged.