Seems silly to start a new thread even if this isn't about Heathrow.
According to FR24 9H-NHS A340-600 just went past me near Yeovil at about 10,000 ft. It's in a NHS livery and seems to have been shuttling between Cardiff and Bournemouth for a couple of days (maybe longer?). Anyone know why? Today was the first time I managed to eyeball it!