Why is the FAA's NOTAM system so important for safe flying? America's airspace shut down for several hours Wednesday morning following a glitch in a computer system used to send alerts to pilots ...

What is the FAA’s NOTAM? An aviation expert explains how the critical safety system works The system grounded thousands of flights when it crashed in January. This is what happened, and how ...

Experts told NPR that the NOTAM system has never gone down like it did on Wednesday, and the last time there was a nationwide ground stop of departing planes in the U.S. was during the 9/11 attacks.