What was found
FIRST OFFICER`S 02 MASK MIKE INOPERATIVE. REPLACED FIRST OFFICER'S O2 MASK IAW MM 35-11-51. OPERATIONS CHECKED GOOD PN IS MR35112.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FIRST OFFICER`S 02 MASK MIKE INOPERATIVE. REPLACED FIRST OFFICER'S O2 MASK IAW MM 35-11-51. OPERATIONS CHECKED GOOD PN IS MR35112.