Actually, it was C-GAUN. Which is even more ironic.
And indeed it was retired, with the original cockpit crew (Capt. Bob Pearson, retired, and F.O. Maurice Quintal plus some of the cabin crew) on the retirement flight to the desert.
I flew as SLF many times on ship 604 and also had the pleasure of meeting Capt. Pearson, which for a lowly PPL like myself, was like a kid who plays hockey meeting his favourite NHL star.