What was found
FIRST OFFICERS MASK MICROPHONE INOPERATIVE. REPLACED MASK BOX IN REF TO AMM 35-12-41, NO HELP, O2 CREW SYSTEM BACK NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FIRST OFFICERS MASK MICROPHONE INOPERATIVE. REPLACED MASK BOX IN REF TO AMM 35-12-41, NO HELP, O2 CREW SYSTEM BACK NORMAL OPERATION.