In 1985/6 I lived in a flat on Bessborough Road in Harrow. We had close sight of Northolt inbounds dodging round our chimney pots going over from front to back. On occasions when LHR was on 23 we had a constant stream of inbounds L>R across fron windows.
On one occasion, early 86, Icelandair 727 approaching 23 jinked right as he broke the scudding low cloud. Very rapid instruction for Iceair xxx to go around, I say again go around. I suspect that was another Northolt landing avoided.