As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
F/O O2 MASK IS MISSING 1 PLASTIC RIVET INLINE WITH TOP OF NOSE BRIDGE SUPPORT STRUCTURE. COMPLIED WITH MEL 35-11R SECOND OFFICERS O2 MASK WAS SWAPPED WITH FIRST OFFICERS. RPL- :REMOVED AND REPLACED O2 MASK REFERENCE AMM, OPS CHECKED GOOD.