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: INTERMITTENT O2 LOW INDICATION. EICAS AND STATUS MESSAGE. FOUND 1500 PSI ON BOTTLE, SERVICED BOTTLE TO 1900PSI NO LEAKS NOTED AROUND BOTTLE, SUSPECT INDICATION SEE HISTORY. ACCOMPANIED HAND OVER HAND CHECK OF ACCESSIBLE WIRING BETWEEN CONNECTOR DM35447 & D5677P, NO DEFECTS NOTED. REPLACED TRANSDUCER. OPS NORMAL.