Delta Air Lines Flight Declares Emergency Over North Sea
On September 8, 2025, Delta Air Lines flight DL161, operating from Amsterdam Schiphol Airport (AMS) to Minneapolis–Saint Paul International Airport (MSP), faced a mid-flight emergency. Shortly after departing AMS, the Airbus A350-900, registered as N521DN, encountered a pneumatic system issue, prompting a return to Schiphol.
The aircraft took off at 09:40 local time and, after 45 minutes of flight at an altitude of 33,700 feet, the crew noted the pneumatic system malfunction. This critical system supports pressurization, air conditioning, engine starts, and anti-icing functions.
Faced with this malfunction, the crew declared an emergency using squawk code 7700. Air traffic control granted clearance for the aircraft to return, and it safely landed back in Amsterdam at about 11:30 local time after holding over the North Sea.
The Airbus A350 involved was only 1.4 years old and featured a special Team USA livery. This type of aircraft is usually deployed for long transatlantic flights, such as the intended 6,705 km journey to Minneapolis, which generally takes over eight hours.
Another Delta Incident: Hydraulic Failure on Transatlantic Flight
Delta Air Lines experienced a similar emergency with another flight. On a journey from Rome Fiumicino Airport (FCO) to New York John F. Kennedy International Airport (JFK), the Airbus A330-300 registered as N804NW, operating flight DL183, reported a hydraulic systems failure during its approach to the U.S.
Upon detecting the malfunction, which affected nose wheel steering and necessitated manual landing gear extension, the flight crew declared an emergency. The aircraft, carrying 279 people, required careful management as it landed on JFK’s Runway 31L with around 23,000 lbs of fuel still onboard.
Emergency services were alerted preemptively to ensure safety during the landing. Following touchdown, the crew requested a tug to move the aircraft from the runway due to the steering system inoperability, minimizing further complications.
