What was found
CREW REPORTS F/O'S O2 MASK MIC IS INOP. T/S IAW TSM 23-51, REPLACED AMU PERFORMED OP CK, OK FOR SVC. (LP: 9100196, AIRCRAFT WAS GROUNDED)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTS F/O'S O2 MASK MIC IS INOP. T/S IAW TSM 23-51, REPLACED AMU PERFORMED OP CK, OK FOR SVC. (LP: 9100196, AIRCRAFT WAS GROUNDED)