As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 4387 THE CREW REPORTED A PASSENGER’S PORTABLE OXYGEN BOTTLE WAS OPERATING AT AT 1100 PSI. THE CREW ELECTED TO DECLARE AN EMERGECNY AND DIVERT TO CRW. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE PASSENGER PORTABLE O2 BOTTLE IAW EMB 140 EEL-06-11. THE AIRCRAFT WAS RETURNED TO SERVICE.