B787 Dreamliner Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 100; Flight Crew Total 13440; Flight Crew Type 53
Aircraft Equipment Problem Less Severe
Aircraft Equipment Problem Dissipated; Flight Crew Overcame Equipment Problem; General Maintenance Action
Aircraft; Human Factors
While stowing the Captain's oxygen mask after a restroom break the oxygen hose broke off the mask. I was able to put a crimp in the hose to avoid losing all the cockpit system oxygen. After consulting with Dispatch and Maintenance Control; we decided to swap out the second observers oxygen mask with the defective Captain's mask. We watched the oxygen system level the rest of the flight and it was sufficient. We landed with 1;500 PSI of oxygen.
B787 Captain reported swapping oxygen masks after the Captain's oxygen hose broke off from the mask.