Between the massive cranes, construction projects and the hubbub of activity, it's hard to miss Des Moines International Airport. But, just in case, the airport is erecting a sign with 20-foot-tall letters representing its assigned airport code: DSM.

As of 7:45 a.m., airport officials say food and beverage services have reopened at Mills and Hudson. Some restrooms on the concourse have also reopened.

There is no indication any of the previous emergencies had anything to do with the crash in Washington, D.C., Wednesday night. The information simply provides additional context into the Bombardier CRJ700 regional jet’s history.