FAA grounds all Alaska Airlines flights due to problem with weight calculation system leaving thousands of passengers stranded - including some who were about to take off

The U.S. Federal Aviation Administration grounded all Alaska Airlines flights due to technical issues.

The agency issued a ground stop advisory for the airline Wednesday, saying: 'All Alaska mainline and subcarrier flights ground stopped.'

While the agency declined to provide a reason for the advisory, Alaska Airlines reported encountering a problem while updating software.

'This morning we experienced an issue while performing an upgrade to the system that calculates our weight and balance,' the airlines said in a statement to DailyMail.com.

'A ground stop for all Alaska and Horizon flights was instituted at approximately 7:30am PT. The issue was mitigated and the ground stop for Alaska and Horizon flights expired at 8:30am PT.'

The airline confirmed that it had begun to release flights, though residual delays were anticipated throughout the day. 

Flights for SkyWest, which provides regional service for Alaska Airlines and others, were excluded from the ground stop.

Customers took to social media to rail against the unexpected service interruptions. 

 Crew on plane; you can deplane, just stay close by the gate. Gate crew: you can’t get off the plane. Back and forth,' one woman wrote on X, formerly Twitter.

'Everyone has walked talkies yet 0 communication between plane and gate. We reboard and pilot tells passenger “you can go get coffee."'

Another man tagged the airline, demanding they provide a reason for the delays.

'I’ve been sitting in this airplane for 2 hours! Was supposed to be a 3 hours flight,' he wrote. '@SpiritAirlines sounds better right about now.'

The airline's fleet of 314 planes is comprised of 231 Boeing 737 aircrafts and 83 Embraer 175 aircrafts. 

Earlier this year, Alaska was forced to cancel thousands of flights after a door plug on a 737 Max 9 blew off shortly after take-off.

Following a thorough inspection, the crafts were cleared to resume flying. Boeing shelled out $160 million earlier this month to make up for losses the airline had suffered.