As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLAP CIRCUIT BREAKER POPS WHEN FLAPS ARE SELECTED DOWN. CORRECTIVE ACTION: FOUND DIODE ON TB-28 IN RIGHT MAIN LANDING GEAR. WHEEL WELL SHORTED. INSTALLED NEW DIODE. PROBABLE FAILURE RELATED TO DIODE AND PC BOARD BEING EXPOSED TO ALL WEATHER ELEMENTS, CORROSION.