As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:PS2, THE CREW O2 BOTTLE NR 3 READS APPROX 200 PSI LOWER AT THE BOTTLE THAN AT THE REMOTE FLIGHT DECK INDICATOR. THE LIMIT IS 150 PSI DIFFERENCE ACCORDING TO TASK CARD NR 0102. REMOVED AND REPLACED FLIGHT DECK REMOTE O2 IND IAW M/M 35-14-02. OPS CHECK GOOD.