As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER OXYGEN MASK DOOR LEFT SIDE IS BROKEN AND CAME OFF ITS HINGE SWAPPED FIRST OFFICER`S MASK AND STOWAGE BOX WITH THE JUMP SEAT POSITION REMOVED IAW AMM 34--11-15 AND INSTALLED IAW TA 001820. PERFORMED OPS CHECK OF THE F/O OXYGEN MASK IAW AMM 35-10-00 AND 23-51-00. REPLACED COCKPIT OBSERVOR MASK STOWAGE BOX WITH SERVICABLE BOX IAW AMM 35-11-15 OP AND LEAK CHECKS GOOD REMOVED FROM MM 02.