Earlier today (30th September 2016) at around 18:00 UK Time British Airways Flight BA296/BAW296 deviated from its flight plan from London Heathrow (LHR/EGLL) to Washington (IAD/KIAD). I happened to notice this on Flightradar24 and watched at it remained at FL130 (13,000ft), heading towards Cardiff. The aircraft entered a short hold overhead Cardiff before heading back towardsHeathrow. On its way back to Heathrow the Boeing 777-236ER (G-VIIJ) passed just north of Bristol. I took this opportunity to get a shot of it flying past. I was hoping to get a shot of it dumping fuel but it must have finished fuel dumping shortly earlier. Nonetheless, I figured some of you might be interested in this video, so here it is!The reason for the return was reported as an 'operational issue'. Little else was reported even after the aircraft landed back at LHR. You can here the Pilot mention briefly something about the oil pressure dropping. Whether that was the cause of the return or was an effect of another technical issue I am not sure.