As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED A LOSS OF CREW OXYGEN AND MADED AN EMERGENCY DESCENT TO 10,000 FEET. THE FLIGHT DIVERTED WHERE THE AIRCRAFT LANDED SAFELY AND WAS REMOVED FROM SERVICE. AIRCRAFT WAS GROUNDED. MAINTENANCE ISOLATED THE LEAK TO THE CAPTAINS OXYGEN MASK ASSEMBLY AND REPLACED IT PER AMM 35-123-41-401.