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Old 7th Sep 2016, 08:46
  #11 (permalink)  
TURIN
 
Join Date: Feb 2002
Location: UK
Age: 58
Posts: 3,507
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In addition it is a maintenance requirement of several operators I have come across for O2 mask tests to be carried out at every Transit Inspection.

As Fullwings says, that's a lot of Oxygen.
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