As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL LEAKING FROM PYLON DRAIN ON NR 4 ENGINE. OPENED PYLON PLATES ON LT SIDE AND CHECKED FOR LEAKS. FOUND SMALL LEAK AT AFT MOST COUPLING INSIDE CENTER OF PYLON. LEAK NOT ENOUGH FOR LEAKAGE DETECTED. NEED TO OPEN MORE OF THE PYLON FOR CHECKS. ALSO PERFORMED EEC ACTUATOR GROUND TEST. LEAKS ALSO OCCURED AFTER TEST. LEAKED CHECK OK CLOSED PANELS AND PYLON.