As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CONNECTION ON CAPTAINS O2 MASK, BETWEEN THE MASK HOSE & THE HOSE COMING OFF THE FLOW INDICATOR BROKE. O2 WAS TURNED OFF & THERE IS 900 PSI IN O2 BOTTLE. REMOVED OLD O2 MASK BOX PN 1186F6-23, SN 1431. INSTALLED A REPAIRED O2 MASK STORAGE BOX PN 1186F6-23, SN 00391 IAW AMM 35-11-01 & SERVICED IAW AMM 12-16-00. OPERATIONS CHECKED GOOD AT THIS TIME.