As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OXYGEN MASK PANEL ON AIRCRAFT LEFT IN THE AFT GALLEY (LOCATED ABOVE THE COFFEE POTS) IS LOOSE. THE PANEL COVERING THE MASKS FELL OPEN DURING TAXI AS WELL AS TAKEOFF. THE PANEL WILL NOT REMAIN SHUT ON ITS OWN. RE-SECURED; INSPECTED & RESET LATCH, PANEL CLOSED & LATCHED NORMAL OK FOR SVC PER AMM 35-23. (LP: 1835428, AIRCRAFT WAS GROUNDED)