As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW O2 READS ZERO PSI. FOUND CREW OXYGEN REGULATOR LEAKING, REMOVED REGULATOR AND CREW 02 BOTTLE. OPS CK AND LEAK CKD GOOD PER AMM 35-11-05, 12-15-08 AND 35-11-00. ROTABLE PARTS CHANGE WAS INDICATED - TT 1870821 SN OFF 0188 TT 1293889 SN OFF 6624 IPC REFERENCE # 35-11-05 BOTTLE, OXY, AI OFF 25-3511-9-9050 0188 ON 29-3511-9-9001 1646.