Narrative:

While enroute we were preparing for a restroom break. As I was pulling my O2 mask out of its compartment; the hose disconnected at the mask causing O2 to be released. I shut off the O2 supply by using the overhead switch in order to preserve our O2 supply. We immediately contacted dispatch who then contacted maintenance control. They advised us to disconnect the O2 hose at the quick disconnect location in the storage compartment which cutoff any O2 flow to that hose. We then deselected the O2 cutoff switch reestablishing O2 flow to the remaining masks. I then exchanged the observer's mask with my mask; connecting the mask and comm wire so that I would have O2 and communications in the event of an emergency. I asked dispatch and maintenance control if they wanted us to divert or continue and they said there was no guidance for this type or event. They advised that they were okay whether we continued or diverted since we were able to replace the mask with the observer's mask. After much discussion with my first officer (first officer) we concluded that I had a normally functioning O2 mask both O2 & communications. Therefore; we continued and entered the discrepancy into the aml (aircraft maintenance log).

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Original NASA ASRS Text

Title: A321 Captain reported a malfunction of an oxygen mask hose during cruise.

Narrative: While enroute we were preparing for a restroom break. As I was pulling my O2 mask out of its compartment; the hose disconnected at the mask causing O2 to be released. I shut off the O2 supply by using the overhead switch in order to preserve our O2 supply. We immediately contacted dispatch who then contacted maintenance control. They advised us to disconnect the O2 hose at the quick disconnect location in the storage compartment which cutoff any O2 flow to that hose. We then deselected the O2 cutoff switch reestablishing O2 flow to the remaining masks. I then exchanged the observer's mask with my mask; connecting the mask and comm wire so that I would have O2 and communications in the event of an emergency. I asked dispatch and maintenance control if they wanted us to divert or continue and they said there was no guidance for this type or event. They advised that they were okay whether we continued or diverted since we were able to replace the mask with the observer's mask. After much discussion with my FO (First Officer) we concluded that I had a normally functioning O2 mask both O2 & communications. Therefore; we continued and entered the discrepancy into the AML (Aircraft Maintenance Log).

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.