Transcript for Pilot's iPad Causes Several Flights to Stay Grounded
Now to the bad app that grounded dozens of flights. American airlines experiencing major delays because of a problem with pilot iPads. David Kerley is at Reagan national with the story. Reporter: Good morning. You know how you felt when you left your phone at home or it's not working, that may be the feeling of the American airlines pilots. Because their iPads have stopped working. They've become very important. The pilots in years past lugging around big cases that contain all the maps that they have of the runways that they might land at at the airports. They can download their flight plans on to those iPads. They stopped working last night. For a couple of dozen flights. And people started tweeting. One said the pilot just told us his iPad is broke and navigation app doesn't launch. #Seriously? The pilots' iPads can't retrieve the flight plans. It was a problem with the application. A lot of people going, huh, pilots using iPads? What will is is the airline saying this morning? Reporter: This is a third party app. Some of the pilots had to bring the planes back to the Gates to get a wifi connection to download software to fix the app. It was a problem with the outside app. You want the maps before you take off. Absolutely. David, thank you.
This transcript has been automatically generated and may not be 100% accurate.