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Old 7th Oct 2014, 17:46
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theflyingbus
 
Join Date: Apr 2006
Location: Hertfordshire
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737-800 Flight crew O2 mask

Evening

Was wondering why the Flight Crew O2 mask on the NG has a sticker with Max Cabin Altitude 40,000' on it, when the certified ceiling is 41,000'?
My colleague today said there was a similar thing on the 767, but couldn't remember why!

Thanks
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