British Airways B772 near Sao Paulo on Sep 30th 2014, unusual odour

A British Airways Boeing 777-200, registration G-YMMB performing flight BA-244 from Buenos Aires,BA (Argentina) to London Heathrow,EN (UK), was enroute at FL310 about 230nm west of Sao Paulo,SP (Brazil) when the crew decided to divert to Sao Paulo due to an unusual odour on board. The crew turned the aircraft to the east and dumped fuel on the way to Sao Paulo, where the aircraft landed safely on runway 27L about 35 minutes later.

The airline confirmed an odour in the cabin which is being investigated by maintenance.

The aircraft is still on the ground in Sao Paulo about 23 hours after landing.

The remainder of the flight was cancelled, the passengers were rebooked onto other flights.