What was found
FIRST OFFICER'S O2 MASK HARNESS FAILED WHILE ATTEMPED TO USE IN FLT. REPLACED FIRST OFFICERS MASK ASSEMBLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FIRST OFFICER'S O2 MASK HARNESS FAILED WHILE ATTEMPED TO USE IN FLT. REPLACED FIRST OFFICERS MASK ASSEMBLY.