As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CANNOT CHANGE CHANNELS. PERFORMED PRELIMINARY INSPECTION. COULD NOT DUPLICATE PROBLEM. FOUND CORRODED FOILS ON DISPLAY BOARD BENEATH HEADER. REPLACED DISPLAY BOARD. REPAIRED. ADJUSTED C/N SQUELCH, FREQUENCY AND SIDETONE. BENCH CHECK GOOD.