“ALL UNITED AIRLINES flights in the US were grounded this morning for nearly an hour, over ‘dispatching information.’
Though United hasn’t indicated the cause for the grounding, tweets from onboard passengers and a news report have indicated various possible reasons.
‘United began delaying flights at approximately 8 a.m. CT to ensure aircraft departed with proper dispatching information,’ United spokesman Charles Hobart wrote an in email to WIRED. ‘We resumed departures at about 8:40 CT and are accommodating our customers to their destinations.’”
Source: All US United Flights Grounded Over Mysterious Problem | WIRED