As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - DIV - FLIGHT NR 432 DIVERTED TO LAX DUE TO CREW O2 SYSTEM DEPLETED. FLIGHT CREW DECLARED AN EMERGENCY DUE TO THE INABILITY TO MAINTAIN RVSM ALTITUDE BUT AFTER THE AIRCRAFT WAS OUT OF THE RVSM THE CAPTAIN DEEMED THE SITUATION A NON-EMERGENCY. THE AIRCRAFT LANDED WITHOUT INCIDENT AND MAINTENANCE REPLACED A RUPTURED O2 LINE BELOW THE O2 MASK STORAGE BOX IAW AWA TASK CARD R1B35601.