American Airlines grounded all its US flights for an hour over a technical issue

CHARLY TRIBALLEAU/AFP via Getty Images

• American Airlines briefly grounded all of its US flights over a technical issue.
• The airline told BI that an issue impacted the systems needed to release flights.
• After an hour, a nationwide groundstop issued by the FAA was lifted.

American Airlines grounded all of its flights across the US for an hour on Tuesday, saying it was experiencing technical issues as airlines gear up for the Christmas travel rush.

The...