As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE WORKING MCO ON LT ENGINE OVERHEAT DETECTION SYSTEM LOOP 2 OBSERVED SEVERE COKING ON UPPER ENGINE CASE AND HEAT DAMAGE TO PYLON INSULATION AND ELECTRICAL CONNECTORS AT J BOX. INSULATION AND ELECTRICAL CONNECTORS ON PYLON REPLACED. ENGINE SENT TO SHOP FOR REPAIR / TO BE REINSTALLED ON A/C. SECURED MULTIPLE HYD AND FUEL LINES INTERNAL TO PYLON. REPLACED MAIN FUEL FEED LINE. WILL T/S OVERHEAT DETECTION SYSTEM AND RE-CHECK PYLON FOR LEAKS AFTER ENGINE IS REINSTALLED.