The informed discussion on this is taking place in the Dunnunda forum. Pieces of the pax oxy bottle have been found inside the main cabin. They entered the main cabin via the hole that pieces of the bottle punched through the floor at R2. The bottle was apparently six months old.
There you go. The facts are slowly unwinding...
Now all we need to know is what initiated the first ever recorded occurrence of an aircraft oxygen cylinder exploding in flight. I'm jiggered if I can think of any initiators off-hand. We can certainly discount maniac firearm owners who want to see "what happens if" like the chaps on You Tube.
