What was found
F/O OXYGEN MASK MICROPHONE VOLUME INAUDIBLE OUT OF F/O COCKPIT SPEAKER. REPLACED F/O OXYGEN MASK PER AMM, CHECK'S OKAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
F/O OXYGEN MASK MICROPHONE VOLUME INAUDIBLE OUT OF F/O COCKPIT SPEAKER. REPLACED F/O OXYGEN MASK PER AMM, CHECK'S OKAY.