As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW OXYGEN SYSTEM LOW. RECORD PRESSURE PRIOR TO SERVICING. CREW COMMENTS: 1275 PSI AND SLOWLY DECREASING. FOUND THE JUMP SEAT MASK CONNECTION POINT TO ACFT O-RING DAMAGED. REPLACED WITH NEW MASK, OP CHECKED MASK, NORMAL. SERVICED O2 LEVELS. ACFT OK FOR SERVICE.