Another United Boeing 767 suffered a technical issue forcing the airline to cancel the flight.
Only three days after a very similar incident, another United Boeing 767 has to return to London Heathrow today.
United flight #UA17 departed London Heathrow runway 27L today at 11:53 GMT.
The Boeing 767-300ER climbed to 34,000 ft altitude before the crew turned around over Ireland due to a fuel leak.
The 26-year-old aircraft (registration N664UA) descended to 33,000 ft before starting its approach back to London Heathrow.
The airline is once again confirming that the plane is now out of service to address a technical issue. The flight was cancelled.
This is the 4th incident of this nature in the past 2 years due to technical issues.