As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 AUDIO SELECTOR PANEL LIGHTING FAULTY. CREW COMMENTS: LIGHTS ON ALL SELECTOR SWITCHES ON CAPTS VHF PANEL ARE INOP. 2ND OBSERVER FLIGHT & SERVICE INTERPHONE SWITCHES INOP. FLT INTERPHONE FROM FRONT TO COCKPIT DOES NOT WORK. REPLACED CAPT AUDIO SELECTOR PANEL, OPS CHECK GOOD.