As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON THE APU, FOUND WIRES AT NR 1 EGT THERMOCOUPLE WERE BURNED. ACFT GROUNDED. REMOVED AND REPLACED APU HARNESS IAW AMM 49-11-01-400-802. PERFORMED APU OPERATIONAL TEST IAW AMM 49-11-00-710-801. OPS CHECKED GOOD. PERFORMED APU BITE PROCEEDURE IAW AMM 49-61-00-700-801. NO FAULTS.