Narrative:

Passenger had a 300 milliliter canister of liquid oxygen. The agent was going to have him empty it before boarding the aircraft. The agent informed me that the oxygen supervisor and a few other supervisors said that it was ok to do this. I was not comfortable with this situation, so I called cargo. He was not familiar with liquid oxygen either. He informed he that it would be ok to take the bottle with me as long as it was confirmed empty and that it was taken in the cargo compartment. The passenger emptied it in front of me and to the best of my knowledge it was empty with no pressure. I made my best decision with the information I had at the time. Besides letting us know about liquid oxygen, the agents and supervisors need to get this information.

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Original NASA ASRS Text

Title: MD80 FLC CONCERNED WITH CANISTER OF OXYGEN BEING CARRIED BY PAX.

Narrative: PAX HAD A 300 MILLILITER CANISTER OF LIQUID OXYGEN. THE AGENT WAS GOING TO HAVE HIM EMPTY IT BEFORE BOARDING THE ACFT. THE AGENT INFORMED ME THAT THE OXYGEN SUPVR AND A FEW OTHER SUPVRS SAID THAT IT WAS OK TO DO THIS. I WAS NOT COMFORTABLE WITH THIS SIT, SO I CALLED CARGO. HE WAS NOT FAMILIAR WITH LIQUID OXYGEN EITHER. HE INFORMED HE THAT IT WOULD BE OK TO TAKE THE BOTTLE WITH ME AS LONG AS IT WAS CONFIRMED EMPTY AND THAT IT WAS TAKEN IN THE CARGO COMPARTMENT. THE PAX EMPTIED IT IN FRONT OF ME AND TO THE BEST OF MY KNOWLEDGE IT WAS EMPTY WITH NO PRESSURE. I MADE MY BEST DECISION WITH THE INFO I HAD AT THE TIME. BESIDES LETTING US KNOW ABOUT LIQUID OXYGEN, THE AGENTS AND SUPVRS NEED TO GET THIS INFO.

Data retrieved from NASA's ASRS site as of July 2007 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.