As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TROUBLESHOOTING OF O2 SERVICING MOTR REQUEST NOTED AIR FITTING ON BOTTOM OF CAPTAINS OF MASK BOX CRACKED AND LEAKING. REMOVED AND REPLACED CAPTAINS O2 MASK BOX P/N ON/OFF MXP411-3 S/N OFF SE10546 S/N ON SE07542 IAW AMM 35-11-15. NO LEAKS NOTED.