What was found
OXYGEN MASK PROBLEM CREW COMMENTS: F/O MASK HARNESS LEAKS WHEN HARNESS INFLATED. REPLACED FIRST OFFICER'S O2 MASK PER MM. SUSPECT LEAK DUE TO INFLATION CYCLING OF HARNESS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OXYGEN MASK PROBLEM CREW COMMENTS: F/O MASK HARNESS LEAKS WHEN HARNESS INFLATED. REPLACED FIRST OFFICER'S O2 MASK PER MM. SUSPECT LEAK DUE TO INFLATION CYCLING OF HARNESS.