As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT LIGHT TWICE ON CSS START FLT 380+ FLT 310. ACFT GROUNDED. FUEL LEAKING FROM FUEL CONTROL DRAIN AT 2 DROPS IAW SECOND. R & R APU FUEL CONTROL UNIT OPS/LEAK CHECKS NORMAL REF AMM 49-31-11. PERFORMED APU BITE, NO FAULTS IN LAST RUN CYCLE, REF FIM TASK 49-30-803.