As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED FUEL DRIPPING FROM AIRCRAFT OVERBOARD DRAIN LINE ASSOCIATED WITH THE APU. TROUBLESHOOTING FOUND THE HIGH PRESSURE FUEL LINE INLET CONNECTION AT THE FUEL NOZZLE MANIFOLD TO BE DRIPPING FUEL ONTO THE HOT APU ENGINE WHEN RUNNING. A CONICAL SEAL WAS INSTALLED ONTO THE INLET CONNECTION PER MM. GROUND RUN AND LEAK CHECKS SATISFACTORY.