As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL LEAKING UNDERNEATH #1 ENG. STOPPED WITHIN 10 MINUTES. GROUNDED - YES. HAD FLT CREW RUN ENG #1, IDENTIFIED LEAK COMING FROM FUEL PUMP DRAIN. REF B737-9 AMM 71-71-00 REMOVED AND REPLACED W/ NEW FUEL PUMP ASSY REF AMM 73-11-01 AND LEAK CHECK IS GOOD AND GROUND VERIFICATION SUCCESSFUL RAN #1 ENG REF AMM 71-00-00.