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Thread: Using 737 Passenger Aircraft for Cargo.
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Old 30th Mar 2020, 19:27
  #17 (permalink)  
tdracer
 
Join Date: Jul 2013
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On most pure freighters, main deck fire extinguishing is done by depressurizing the aircraft and maintaining at least 25,000 ft. pressure altitude (flight crew obviously on supplemental O2). This usually requires additional O2 for the crew.
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