What was found
LOW VOLUME INTERPHONE COMMUNICATION FROM L-2 HANDSET, UNABLE TO HEAR COCKPIT AT L-1 HANDSET.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOW VOLUME INTERPHONE COMMUNICATION FROM L-2 HANDSET, UNABLE TO HEAR COCKPIT AT L-1 HANDSET.