Like Cusco I was under the impression that notice 75 had been withdrawn (a consequence of EASA?).
I think the 'small' twin that lost a prop in Nofolk was a Navajo - I've had a look for the report on the AAIB site, but can't find it.
As to loosing a prop on a single - didn't this happen in the mid 1990s to somebody, and was one of the reasons the CAA instigated the reqiurement for crankshaft inspections on all lycomings with fixed pitch props. IIRC the person it happen to managed to pull off a forced landing and got a CAA safety award for it.
Brooklands