@aerospotterr: This United Boeing 767, declared an emergency after the flight crew reported an electrical burning smell coming from a seat on board. The pilots communicated the situation through with the messages appearing on the FlightDeck app. The aircraft subsequently returned to London Heathrow (LHR) to deal with the issue safely. A good example of how flight crews respond quickly when they detect a potential electrical problem on board #flightdeck #emergency #b767 #aviation #fyp