The BOAC 707 G-ARWE that caught fire and an engine fell off in 1968 came back onto 05R.
Withdrawing a valuable runway just for the revenue convenience of Heathrow, at the nation's major airport, is something that, if they were up to the job, the CAA should never have allowed to happen. Exactly the same during the years that followed when Heathrow maintained the fiction that the runway existed but if you requested 23 you were told there would be a 2 hour delay while infringing parked aircraft were removed, and it never seemed to occur to anyone to have a procedure to remove such parked aircraft beforehand, when the wind was getting up in the relevant direction.
The last movement I can actually recall seeing onto 23 must have been 1988 (because I recall seeing it from the M4 when my old E-reg car was new !). It was a 747, which just looked strange coming from that direction.
For those writing about ATC when intersecting runways were in use, have you ever been to Chicago O'Hare, any day ? Six runways, all intersecting in varying combinations, and all in use simultaneously.