As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER CABIN RIGHT SIDE OXYGEN SYSTEM DROP CHECK FAILED DURING ACCOMPLISHMENT OF TASKCARD 5R35I1138. TROUBLESHOT OXYGEN SYS REF B757 WDM 35-21-11. FOUND PASSENGER OXYGEN R CIRCUIT BREAKER P-N 2TC47-5 TO BE INTERMITTENT. REMOVED, REPLACED & OPS CHECKED CB REF AMM35-21-00 & AMM20-60-05. OPS CHECKED GOOD.