Qatar A333 at Doha on Apr 20th 2014, smoke in cabin

A Qatar Airbus A330-300, registration A7-AEA performing flight QR-1 from Doha (Qatar) to London Heathrow,EN (UK), was in the initial climb out of Doha's runway 33 when the crew stopped the climb at 2500 feet due to smoke in the cabin and returned to Doha for a safe landing on runway 33 about 13 minutes after departure.

A replacement Airbus A330-200 registration A7-ACB reached London with a delay of 4:15 hours.

Passengers reported that there was a strong burning smell, then visible haze and smoke about mid cabin. Cabin crew fetched portable fire extinguishers and checked the cabin including walls and overhead bins for possible sources of heat or fire but without finding any. The cabin was prepared for an evacuation, however, the smoke began to dissipate and was gone by the time of touch down. Emergency services met the aircraft upon landing. The passengers disembarked normally.