As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE POWER SUPPLY SENT, SHOWS ABNORMAL MAINTENANCE. EXTERNAL INTERVENTION WHICH SHOWS DEFECTS: SOME BURNING TRACES FOLLOWING EXTERNAL REPAIRS. VARNISH MISSIN IN SOME PLACES. INTERVENTION NOT IN COMPLIANCE. TEST ATEC NOT PERFORMED. REPAIR THE BOARD: REPLACEMENT OF DAMAGED COMPONENTS AS DESCRIBED IN REPORT AND APPLICATION OF VARNISH.