The flight was en route from London to New York on Saturday when the plane developed a fuel leak.
The leak forced pilots to land at Gander International Airport.
A spokesperson at the airport's fire services division said there were no major problems with the landing and all passengers were OK.
Another plane is expected to arrive Sunday afternoon to get the passengers on their way, while the original plane is being repaired.
The passengers had to bunk down at the terminal because there was no room at any of the hotels in town.