A 21-year-old man accused of impersonating an airline employee at the Omaha airport has pleaded guilty.

The Lincoln Journal Star reports that Timothy Foster, of Omaha, admitted entering a secured area at Eppley Airfield under false pretenses. Foster made his plea Wednesday in federal court in Omaha.

According to the criminal complaint, Foster pretended to be a United Airlines employee for six weeks starting in April. The complaint says he accessed restricted areas and a computer system of United Airlines and displayed a security badge he’d made.

Foster faces up to six months behind bars and a $5,000 fine. His sentencing is scheduled for Feb. 26.