As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALTERNATOR OUTPUT WIRE, SHORTED BETWEEN THE INNER CABLE AND OUTER SHIELDING, CAUSING FAILURE OF THE TIE BUSS CIRCUIT BREAKERS AND DAMAGE TO ASSOCIATED WIRES IN HARNESS. DAMAGE TO HARNESS CAUSED SHORT TO ENGINE DATA UNIT AND COMPLETE FAILURE OF THE ENGINE INSTRUMENTS.