What was found
UNABLE TO HEAR PUSHBACK CREW THROUGH FLIGHT INTERPHONE. REPLACED AUDIO ACCESSORY UNIT IAW MM, NO HELP. REPLACED FLT INTERPHONE HEADSET JACK ON PANEL P40, FLT INTERPHONE, OPS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UNABLE TO HEAR PUSHBACK CREW THROUGH FLIGHT INTERPHONE. REPLACED AUDIO ACCESSORY UNIT IAW MM, NO HELP. REPLACED FLT INTERPHONE HEADSET JACK ON PANEL P40, FLT INTERPHONE, OPS NORMAL.