As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
O2 DISCHARGED COMPLETELY THROUGH FO'S REGULATOR IN MASSIVE AND SUDDEN LEAK(<P>FOUND FO'S OXYGEN MASK BOX CONNECTION HOSE BLOWN OFF AND MASSIVELY LEAKING. REMOVED AND REPLACED CONNECTION HOSE ASSY IAW AMM 20-11-00, OPS AND LEAK CHECHED GOOD IAW AMM 35-11-00. </P>)