What was found
F/O O2 MASK WILL NOT TEST IN STOWED POSITION, APPEARS OK WHEN REMOVED FROM STORAGE. SHORT IN O2 BOX. REPLACED F/O O2 MASK STOWAGE BOX.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
F/O O2 MASK WILL NOT TEST IN STOWED POSITION, APPEARS OK WHEN REMOVED FROM STORAGE. SHORT IN O2 BOX. REPLACED F/O O2 MASK STOWAGE BOX.