British Airways B744 near Dallas on Feb 7th 2014, smoke in aft cabin

A British Airways Boeing 747-400, registration G-BNLW performing flight BA-288 (dep Feb 6th) from Phoenix,AZ to London Heathrow,EN (UK), was enroute at FL350 about 240nm north of Dallas Ft. Worth,TX (USA) when an electrical odour and smoke emanated from the aft cabin. While cabin crew isolated the fault, the flight crew diverted the aircraft to Dallas Ft. Worth for a safe landing on runway 35C about 40 minutes later.

The aircraft was able to continue the flight after about 3 hours on the ground and reached London with a delay of 3:10 hours.

A passenger reported there was smoke from one of the rear of the cabin, then the cabin lights extinguished while cabin crew attempted to isolate the fault.