As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-04 CHECK THE R-2 DOOR EMERGENCY OXYGEN DOOR FAILED TO DEPLOY ON MASK DROP TEST. MAINTENANCE REMOVED AND REPLACED THE R-2 DOOR EMERGENCY OXYGEN CONTAINER IAW AMM 35-21-41-020-051, AND 35-21-41-420-051, OPS CHECKED GOOD IAW AMM 35-23-00-710-050-A.