Should be an easy one. Flying YVR - LHR a little later today on a 747-400a (744) and have been allocated 51J. Was about to swap it for my usual preferred aisle seat on OLCI but noticed that there's no seat K in this row.
Does anyone know if 51J allows you to squeeze out around the right hand side of the seat, thus not disturbing the person in 51H? It's not possible to tell from the BA / Seatguru maps but I'm sure someone here knows