What was found
CAPTAIN'S O2 MASK MIC INOP. REPLACED CAPTAIN'S STOWAGE BOX WITH GOOD UNIT FROM SECOND OBS POSITION, OPS AND LEAK TESTS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPTAIN'S O2 MASK MIC INOP. REPLACED CAPTAIN'S STOWAGE BOX WITH GOOD UNIT FROM SECOND OBS POSITION, OPS AND LEAK TESTS OK.