A systems outage temporarily grounded some planes on Friday, causing headaches for both crew and passengers around the United States.

American Airlines flights have resumed after a system outage grounded flights. Multiple reports on social media said planes were unable to take off because of technical problems. According to reports on X, one pilot said he couldn't sign the maintenance form to be cleared for takeoff because his computer was not working.

American Airlines suffered a computer system outage which affected flights and airports nationwide on Friday, June 27, CNN and 'The New York Times' reported.