Last 3 verses from Ferrara's version:

The young aviator expire-ed
And away up to heaven did climb
With the aid of his Rolls Merlin engine
He arrived there in double quick time

"Oh what have you done" said St Peter
"To be seeking admission up here?"
He said "I was a young Air Force pilot
On Earth for best part of a year"

The Pearly Gates opened like Magic
And there rang a Celestial Bell
"Come in, grab a harp and sit down lad
You've spent long enough down in hell!"

I think I got it from some Aussie source which I can't remember
Gaffer