This happened to an Air Zimbabwe 762 Z-WPE on approach to LGW in 2008
BA used to fly 747-400
LHR-GRU-EZE (Until 777 started direct LHR-EZE)
Here is an interesting article, Heathrow to Barbados and back again in 1 day with time on the beach!
I wished I’d been able to fly Concorde
https://www.dailymail.co.uk/travel/holi ... s-day.html