Got The TShirt,
Oxygen Generators are CAO (Cargo Aircraft Only. The Propper Shipping Name now reflects this.
Don't have the manual here at home, so can't give you page numbers.
A carrier is responsible for it's agents. The carrier has to verify what it is carrying. The only way out is if a shipper (nb:not agent) deliberately cheats. That is a crime.
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rgds Rat