As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REPLACEMENT OF #2 ENGINE IGNITER PLUGS, FOUND MISSING BRAIDING IN TWO LOCATION ON THE CORE FIRE DETECTION WIRE HARNESS, LWR HARNESS MW0325. GROUNDED - YES. REMOVED CORE FIRE DETECTOR HARNESS MW0325 PER AMM 26-11-02-000-802. INSTALLED HARNESS PER AMM 26-11-02-400-802. PERFORMED OPS TEST PER AMM 26-11-00-710-801 OPS TEST IS GOOD.