Solar storm or poor signal quality can force a downgrade past minimums.

A new RNAV approach at Anaktuvuk Pass, Alaska, is rendered impractical by a high Minimum Descent Altitude (MDA) of 4000 feet above the airport, primarily due to terrain constraints for the missed ...

Pilots must navigate rules for using GPS info as a substitute means of navigation to stay legal.

Where do you get your information? Do you go to experts, or rely on what people tell you in a Facebook post? I try not to spend too much time interacting on social media because to me it's largely a ...