DENVER (KDVR) — Commercial airline United Airlines ordered a ground stop for flights at multiple major airports Wednesday evening.

According to the ground stop alert posted by the Federal Aviation Administration, the carrier had asked for the ground stop to be issued due to a technology issue.

The airline said the impacted system is called “Unimatic,” and houses information about each flight that is fed to other systems. The information shared includes those that calculate weight, balance and track flight times.

The airline said it is treating the matter as a “controllable delay,” which means the airline paid for customer expenses such as hotels or meals where applicable.

The airline also shared that the outage began at 5:12 p.m. MDT and was resolved within a few hours.

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