The trains connecting concourses at Denver International Airport returned to full capacity early Wednesday, averting another chaotic day of crowds and long lines. 

About 4:30 a.m., airport officials reported repairs had been completed overnight on the “damaged section of the running surface of DEN’s train that runs between the terminal and concourse A,” according to a post on X. 

Normal operations resumed just before 4 a.m.

The trains to the concourses at DIA were running at limited capacity on Tuesday.

“Due to a technical issue, our trains are running at a limited capacity. Engineers and maintenance crews are evaluating what that issue is and how to resolve it as quickly as they can,” DIA spokesperson Courtney Law said Tuesday.

More than 200 flights were delayed or canceled at DIA on Tuesday, but it wasn’t clear if those were a result of the reduced train capacity. As of 6:30 p.m. Tuesday, 186 flights had been delayed and 48 had been canceled, according to FlightAware.com.

For more on this story, and others, visit The Denver Gazette’s news partners 9NEWS.com. 

Crowds were thick Tuesday at Denver International Airport after a broken switch plate on a rail line took out the train to the A Concourse. Repairs overnight had the trains back in full operation by Wednesday morning at 3:50 a.m.

9NEWS