Originally Posted by
Texasbound
At what problem would that be, the design flaw they speak of?? Using bleed air to pressurize the cabin? Who ever came up with that stupid idea?
There does exists the potential for toxic fluids to get past seals and into the bleed air. Also demonstrated that some fluids can be altered by the heat of compression at the bleed stage to produce REALLY toxic chemicals (ie nerve gas).
In future designs cabin air will probably be produced by an electric pressurization/HVAC unit like the 787. Or at least will have some more robust filters.