Having just deleted my first post because on second thoughts, I agree that the number will be VW71n.
Consequently searching the National Archive online for VW710-VW719 reveals:
Accident to Sea Fury FB11 VW710 on 7th June 1952
Accident to Sea Fury XI VW711 on 31st March 1950
Accident to Sea Fury FB11 VW718 on 7th September1953
Unfortunately, none of these records are digitised - but they are available at the National Archive in Kew Garden if there's a real desire to follow up and read them.
None of the other serials return any hits.