How long might the Westland Wyvern have served?

How long could the Westland Wyvern have served if its fuel-system flaw had been caught and fixed?

It could plausibly have served for around twenty years because it was otherwise a useful aircraft.

The Wyvern was a potentially durable aircraft whose service life was constrained by a fixable fuel-system problem rather than lack of utility. The counterfactual assumes that testing catches and corrects the fault before it limits the type in service. On that basis, a service life of about twenty years is considered plausible. One subsystem could determine whether an otherwise useful naval aircraft reached its intended operational life.