According to one claim, one escalator near the Boulder Beer Tap House malfunctioned 28 times before an injury.

The lawsuits name several escalators that allegedly suddenly stopped, causing falls.

The City and County of Denver and KONE Corporation are named as defendants in five lawsuits filed this year and in 2008. KONE is responsible for DIA's escalator maintenance.

One of those lawsuits has been filed by Gary Randall and his wife, Betty. They claim an escalator suddenly stopped in May of 2010, causing Betty Randall to fall forward, which resulted in serious knee and neck injuries.

"Three surgeries and I'm still in pain," Betty told 9Wants to Know.

She claims the injuries created $250,000 in medical bills the city refuses to pay for.

"We're not rich people," Gary, a pastor at Elmwood Baptist Church said. "We're buried. Our pockets are empty and their [the City] have no end."

The Randalls are baffled as to why the city continues to fight their claim. A trial is set for Monday morning.

The Randalls claim maintenance records obtained by their attorney show the escalator was never repaired properly and had suddenly stopped 28 times in the weeks before the fall.

A bartender at the Boulder Beer and Tap House, who works near the escalator, told 9Wants to Know he remembers the escalator suddenly stopping "almost every day," causing people to routinely fall.

Three similar lawsuits against the city were filed this year along with another in 2008 involving other escalators at DIA.

Court records show some of the lawsuits have resulted in settlement payouts.

The city and KONE corporation refused to comment to 9Wants to Know about the lawsuits and the Randall's claim because of pending litigation.

In one notable case, an escalator at Coors Field sped up too fast in 2003. Thirty people were injured, including a woman who nearly had to have her leg amputated.

KONE was also responsible for maintaining that escalator.

Have a comment or tip for investigative reporter Jeremy Jojola? Call him at 303-871-1425 or e-mail him