As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FLT ATTENDANT’S MASK AFT OF 26DEF FAILED TO DEPLOY. LEFT FLT ATTENDANT'S OXY BOX DOOR HINGE AFT OF 26DEF ADJUSTED AND OXY BOX DOOR LATCH/ACTUATOR OPERATION TESTED NORMAL MM 35-21-00. NOTE: O2 MASK DROP TEST CONDUCTED DURING POST 4C TEST FLIGHT, BY TEST FLIGHT CREW.