As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A CO PILOTS EMERG 0XYGEN SWITCH FAILS TO FULLY CLOSE ***SUPPLEMENTAL MRR*** REPLACED CO-PILOTS REGULATION W/SERVICABLE RUGULATION AND REPLACED W ITH SERVICABLE BOTTLE. LEAKED CHECK OK OPS CHECK PER 727 MM CHPT 35- 11-31 AND 12-15-11