As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PART HAS SHOWN HISTORY OF ARCING BETWEEN PINS 15 AND 14. THIS IS A HIGH VOLTAGE PROBLEM AND HAS BEEN SEEN IN NUMEROUS UNITS. IT CAUSES THE CIRCUIT BOARD TO BURN AND CAUSES A SHORT ON TEH 180V LINE, SOMETIMES DAMAGING THE POWER SUPPLY IN THE RADIO.