As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF WDM 30-31-03 PG 2 WIRE F1551B20 FOUND BURNT THROUGH IN OVERHEAD F/C CABIN. RAN AND SPLICED WIRE F1551B20 IAW SWPM 20-10. TERMINATED AT R5-1201 IAW SWPM 20-31. 903393. WIRING CKS C/W IAW WDM 30-31-03. 399270. OPS CHECK PRIM STAM TRIM MOTOR HEATER PER AMM 27-40. CHECKS GOOD. (LP1097692)