What was found
OXYGEN PANEL LATCH BROKEN. OPENED DURING TAKEOFF. UPPER AND LOWER LATCHES ARE DAMAGED AND WILL NOT CLOSE PROPERLY. THE PANEL APPEARS TO BE MISALIGNED, LEAVING THE MASKS EXPOSED. C/A: RESECURED O2 MASK BOX AND LATCH AS REQ. MASK DROP TEST GOOD. A/C OK FOR SVC. (LP: 1869892, AIRCRAFT WAS GROUNDED)