As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS-ENG B FIRE LOOP ON ECAM. CHECKED RESISTANCE BETWEEN PINS J-K AT FDU 2 LOOP B. FOUND RESISTANCE FLUCTUATING FRANTICALLY OUT OF LIMITS WHILE TAPPING HARNESS 4166KS. REMOVED & REPLACED HARNESS 4166KS PER AMM 26-12-62. RESISTANCE STAYED SOLID AT 1.5K OHMS. ECAM MSG CLEARED OK FOR SERVICE.