As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT`S EADI INTERMITTENT, TROUBLESHOOTING CARRIED OUT BY MAINTENANCE WHICH DETERMINED DIODE CR41 IN NOSE JUNCTION BOX BURNED AND ARCHING. DIODE REPLACED, SYSTEM CHECKED SERVICEABLE. REF WIRING INTERFACE-JUNCTION BOX DWG 129-340016 SHEET 5.