Delta flight from London Heathrow to New York JFK has declared an emergency and is going to divert.
The flight DL4 departed today from London Heathrow at 16:45 GMT to New York.
The crew declared an emergency (squawk 7700) after about 2 hours of flight, while cruising over Atlantic at 34,000ft.
The flight is operated by a 25-year-old Boeing 767 (registration N825MH).
The airline is confirming the flight has diverted.
UPDATE #1
The flight is holding 10,000ft which could suggest a pressurization issue or a lower altitude to burn more fuel in order to reduce the weight.
UPDATE #2
Flight DL4 is diverting to Shannon.
UPDATE #3
The Boeing 767 has landed on runway 06 at Shannon Airport.
UPDATE #4
The aircraft has vacated the runway, escorted by fire engines. Now stopped on taxiway for hot brakes inspection.
UPDATE #5
The plane is now at the gate.
UPDATE #6
The crew reported a mechanical issue with flight deck window heat.
