American Airlines on Tuesday grounded all flights after its computer systems suffered a glitch, according to the New York Times:
The airline said it had imposed a ground delay on planes scheduled to take off until 5 p.m. Eastern time as it worked to resolve the issue.
The airline said the issue was caused by an inability to access its reservations system, called Sabre. The electronic system is responsible for bookings and reservations but also manages a wide variety of functions related to flights.
An outage meant gate agents could not print boarding passes, for instance.
