As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORT: HEAVY FUEL LEAK FROM APU UNDERSIDE AREA OF AIRCRAFT. FOUND FUEL LEAK AT THE APU FCU WITH APU RUNNING, WITH APU INOP FUEL LEAK STOPPED. WILL INOP THE APU PER MEL 4911A. WITH APU INOP THERE IS NO FUEL SUPPLIED TO APU. REVIEWED WITH SAMC-EMC. SJC NOTED FUEL LEAK WAS AT THE FCU. FCU PCN 621-9004. POSSIBLE PARTS. RAN APU, ACCOMPLISHED LEAK CHECK. CHECKED FITTINGS OF FCU. NORMAL OPERATION WITH NO LEAKS.