Narrative:

At FL310 about 40 mins to [destination] I informed our first officer that I would like to use the restroom. We coordinated with our flight attendant. I had not transferred the controls to the first officer yet. First officer got his O2 mask out and we could hear it leaking with full pressure. I had my anr headsets on and I can still hear the oxygen flowing out. Moments after that we received a oxy lo pres caution message. I asked first officer to run the oxy lo pres caution message QRH procedure. (Which told us to descend to safe altitude if leak is suspected). We informed ATC of the crew oxygen leaking and requested a lower altitude. ATC gave us FL290 & then FL240. While in the descent they asked us to maintain 320 KTS or greater (center) I took an assessment of our fuel and time remaining to [destination]. I made the first officer (first officer) aware of the fuel and time and included him in the discussion. I told him that we may go to [diversion airport] because of its suitability (proximity to our flight path) - if ATC won't let us slow down because we were burning our fuel at a faster rate @ FL240. I used the perf menu-fuel mgmt page and noted time to reserve was 24 mins; when I typed [the destination] in the fix page it showed 14 mins away. I requested lower and direct to [the destination]. We were given direct [the destination] & 11;000 feet and priority handling. We landed safely. We stayed calm; ran through the problem and used CRM effectively for a time threat and we also kept our dispatcher informed of the malfunction and fuel [critical] status. We did not rush and we debriefed at the end of the flight and the first officer agreed that [notifying ATC was best] and proceeding to [alternate] were the right decision. We landed with 2200 pounds of fuel and 2140 pounds of fuel at the gate.oxy lo pres caution message in itself is not an emergency item however lack of fuel due to higher fuel burn rate makes it an emergency. I waited until I had a proper assessment of our flight time and fuel to [alternate] and I had [another airport] in mind (less than 5 mins away in case I had to land immediately). We had pre-flighted the O2 flow and pressure but it does not require us to take the mask out of the container - if we had pulled it out on the ground during safety check we would have known that pulling the first officer mask has a leak? I think that's about the only recommendation I can think of.contributing factor was ATC requiring us to maintain 320 KTS or higher. We got speed our discretion and direct to [alternate] & 11;000 feet.we had pre-flighted the O2 flow and pressure but it does not require us to take the mask out of the container - if we had pulled it out on the ground during safety check we would have known that pulling the first officer mask has a leak? I think that's about the only recommendation I can think of.

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Original NASA ASRS Text

Title: CRJ-200 Captain reported that when his First Officer pulled out his crew O2 mask an oxygen leak was noticed.

Narrative: At FL310 about 40 mins to [destination] I informed our first officer that I would like to use the restroom. We coordinated with our Flight Attendant. I had not transferred the controls to the First officer yet. First Officer got his O2 mask out and we could hear it leaking with full pressure. I had my ANR headsets on and I can still hear the oxygen flowing out. Moments after that we received a OXY LO PRES Caution Message. I asked First Officer to run the OXY LO PRES Caution Message QRH Procedure. (Which told us to descend to safe altitude if leak is suspected). We informed ATC of the Crew oxygen leaking and requested a lower altitude. ATC gave us FL290 & then FL240. While in the descent they asked us to maintain 320 KTS or greater (CENTER) I took an assessment of our fuel and time remaining to [destination]. I made the First Officer (FO) aware of the fuel and time and included him in the discussion. I told him that we may go to [diversion airport] because of its suitability (proximity to our flight path) - if ATC won't let us slow down because we were burning our fuel at a faster rate @ FL240. I used the PERF MENU-FUEL MGMT Page and noted time to reserve was 24 mins; when I typed [the destination] in the Fix page it showed 14 mins away. I requested lower and direct to [the destination]. We were given Direct [the destination] & 11;000 feet and priority handling. We landed safely. We stayed calm; ran through the problem and used CRM Effectively for a time threat and we also kept our Dispatcher informed of the malfunction and fuel [critical] status. We did not rush and we debriefed at the end of the flight and the First Officer agreed that [notifying ATC was best] and proceeding to [alternate] were the right decision. We landed with 2200 LBS of fuel and 2140 LBS of Fuel at the Gate.OXY LO PRES Caution message in itself is not an emergency item however lack of fuel due to higher fuel burn rate makes it an emergency. I waited until I had a proper assessment of our flight time and fuel to [alternate] and I had [another airport] in mind (less than 5 mins away in case I had to land immediately). We had pre-flighted the O2 Flow and pressure but it does not require us to take the mask out of the container - if we had pulled it out on the ground during safety check we would have known that pulling the first officer mask has a leak? I think that's about the only recommendation I can think of.Contributing factor was ATC requiring us to maintain 320 KTS or higher. We got speed our discretion and Direct to [alternate] & 11;000 feet.We had pre-flighted the O2 Flow and pressure but it does not require us to take the mask out of the container - if we had pulled it out on the ground during safety check we would have known that pulling the first officer mask has a leak? I think that's about the only recommendation I can think of.

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.