Aircraft Generator

Jul 19
2012

Can anyone help me with this aircraft oxygen system question I had on a JAR aircraft engineering test?

During a demonstration of the operation of a passenger chemical oxygen generator the panel was manually opened and the masks deployed. The lanyard was pulled but no oxygen flowed from the hose to the face masks? Can anyone diagnose possible faults in this scenario?? Thanks

Lanyard broke thus not activating the canister. The igniter is faulty. The canister is already used and not replaced. The hose has a kink or is disconnected from canister.

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