Investigators issued their preliminary report Tuesday in the probe into the devastating crash between an American Airlines plane and a U.S. Army Black Hawk helicopter.

Some 1,000 NPS employees were fired, and hiring for seasonal positions was delayed. Here's what to know about the impacts ...

The US government plans to hire more air traffic controllers in a bid to address long-term Federal Aviation Administration ...

They belong to the behind-the-scenes team, busy on walkie-talkies ... coordinating with and relaying information to the ATC team on the location of birds and other threats, if any.

It occurs when a pilot fails to adhere to the instructions of their air traffic controller (ATC) or breaks one of ... especially at busy airports. The most common IFR deviations are the following ...

Busy season varies between parks ... Ann Simonelli, a spokesperson for the Appalachian Trail Conservancy (ATC), told NPR over email that two out of 10 Appalachian Trail full-time staff members ...