So, it's OK for the PIC to use his oxygen mask, but not for the passengers? Perhaps better to let them die from smoke inhalation?
And I wouldn't have considered that passengers using the emergency oxygen supply through masks (ie a closed system) akin to adding oxygen to a fire, in the sense that opening the doors upon landing ultimately did.
Thanks for your great help HON1R - perhaps have a read of what is described below "Spectators Balcony (Spotters Corner)" on the home page.
