Well sorry, but I was there for the whole investigation, not at the crash site, but with the teams that went over our identical Viscount in Overhaul for weeks and weeks.
Even if you believe that a leak from a plug being installed in the wrong place on the blower started the fire, the main problem, and it was a design problem THAT WAS NEVER FIXED was that there was NO way of putting out a fire in that area.
I would prefer NOT to argue over such a sad and tragic loss of life, thank you.