Engineers are continuing their investigatation after a British Airways flight to Canada was forced to return to London on Tuesday when crew saw smoke in the cockpit.
The crew of Flight 103 to Calgary requested a priority landing at Heathrow and returned safely, said an airline spokesman.
He said the flight had returned ‘as a precaution’ and all the passengers disembarked normally from the 767-300.
Engineers are still inspecting the plane but the spokesman said he was unable to reveal what caused the smoke.
The aborted flight left 162 passengers stranded overnight in London. The spokesman said the flight departed on a replacement aircraft at 5pm yesterday, after a delay of almost 24 hours.
