Having shut down/feathered the engine, the approach was flown with full flap (40 degrees). The aircraft subsequently got behind the drag curve, I'm unsure as to whether they were actually attempting a go-around, but the aircraft departed controlled flight (i.e. below Vmca) when very close to the ground. Following the wingtip contact, the aircraft spun around came to rest - intact - facing back the way it had come; if nothing else a tribute as to just how strong the Friendship was.
They were lucky not to have killed people.
Certainly by the time I got on the F.27 in 1969 single-engine approaches were flown with approach flap only (26.5 degrees), but I'm unsure if this was in place before or after the Launceston accident.