As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IND - DIVERSION - FLT 0687 - EN ROUTE FROM PHX TO EWR CREW OXYGEN INDICATED ZERO PSI. ONE-HOUR PRIOR OXYGEN INDICATED 1300 PSI, PRIOR TO DEPARTING PHX CREW OXYGEN WAS AT 1425 PSI. MASKS WERE NOT USED, DIVERTED TO IND. MAINTENANCE REMOVED AND REPLACED THE CREW OXYGEN BOTTLE SERVICED TO 1760 PSI, LEAK CHECK WAS GOOD. OXYGEN BOTTLE REMOVED NEVER DROPPED BELOW 120 PSI. INSPECTED MASKS AND OXYGEN LINES ON FLIGHT DECK, NO LEAKS NOTED.