As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW OXYGEN LOW ADVISORY CREW OXYGEN PRESSURE IS LOW. POSSIBLE CAUSES ARE; CREW OXYGEN US AGE, LEAKAGE IN TUBING, OR CYLINDER SHUTOFF VALVE IS CLOSED. AFTER BOTTLE REPLACEMENT FOUND THE OPPOSITE BOTTLE WITH VALVE CLOSED. REPLACED SPENT BOTTLE AND LEAK AND OPS CHECKS GOOD