Originally Posted by fruit loop
Am I missing some thing here....How long does it take to get to Fl 100 if the other bleed goes U/S....??
Probably the same amount of time in the case of a rapid decompression, though if you dispatch with one bleed inop and your second fails in flight, presumably the outflow valve would close to maintain pressurisation & it would then be a case of how long till the leaks in the airframe allow it to depressurise.
You might even be able to do a relatively normal descent after your second bleed failure if you're having a good day.