Delta Airlines is being investigated by the DOT over the IT outage that caused chaos.

• Delta Air Lines is being probed by the U.S. Department of Transportation's Office of Aviation Consumer Protection due to the turmoil caused by last week's worldwide IT outage, as per a statement.
• Delta was criticized by the DOT for widespread flight disruptions and poor customer service, as it failed to fulfill its promises to passengers.
• Microsoft systems experienced a historic outage last week due to a software update from CrowdStrike. The update caused disruptions in various industries worldwide, with Delta Air Lines being significantly affected.

The Office of Aviation Consumer Protection of the U.S. Department of Transportation is probing the turmoil caused by the recent global IT outage, as stated.

Delta faced widespread flight disruptions and customer service failures, according to the DOT, which said the investigation into these issues will continue as the agency processes a "high volume" of customer complaints.

Transportation Secretary Pete Buttigieg stated that our department will utilize our complete investigative and enforcement capabilities to safeguard the rights of Delta's passengers.

Microsoft systems experienced a historic outage last week due to a software update, affecting airlines and other global industries, with Delta Air Lines being hit particularly hard.

On Friday and Saturday, Delta canceled 32% and 36% of its flights, respectively, and executives have warned that the challenges would continue during the busy summer travel season.

Since Friday, Delta CEO Ed Bastian stated in a video message to employees that the weekend was "horrible" and that the airline had canceled over 4,000 flights.

Buttigieg spoke with Bastian on Sunday about Delta's dedication to its customers and said, "We strive to provide the best possible care, especially during challenging times."

Rahul Samant, Delta's Chief Information Officer, informed staff in a message that although most systems have been restored, the "critical" crew tracker is still not functioning.