Flights stopped, again started again: Why did United Airlines give land to its entire fleet? Flight services delayed nationwide

United Airlines on Thursday stopped all mainline flights in the US, when the alarm of the fire began an emergency withdrawal at its Chicago-region’s operational center.The alarm was seen at the airline’s network operations center at Arlington Heights. It led a temporary nationwide ground stop, affecting hundreds of flights. The United Airlines confirmed that the employees were taken to a nearby backup facility as a precaution.The airline said in a statement to Fox News, “There was a fire alarm in our operation center, due to which the employees stepped into the backup facility and consequently there was a brief nationwide ground stop of the United Aircraft.” “Employees have returned to our primary operation center, and the ground stop has been removed.”The Federal Aviation Administration (FAA) issued an advice around 6:30 pm local time, confirming the temporary suspension of United operation. Although no fire was confirmed in the convenience, the decision to stop all flights was cautious.According to the flight tracking website flightware, there was more than 200 delays across the country by Thursday evening. Service was restored within about an hour.According to the mirror, the United Airlines operates the world’s largest fleet with over 1,000 aircraft. The latest event connects to a link to operational problems faced by the carrier. In 2023, a software issue led a similar ground stop, delaying hundreds of flights.A week ago, on 16 July, a joint flight bound to Florida’s Sarsota was forced to return to the O’Here International Airport in Chicago immediately after the takeoff due to the engine warning. The Boeing 737 crew reported low pressure in the engine number two, indicating emergency landing.Social media was filled with images of ground aircraft and passengers while waiting for the update during Thursday’s stop.