As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING #2 ENG WALK AROUND DURING A-CK FOUND LARGE PUDDLE OF FUEL UNDER ENGINE. GROUNDED - YES. REMOVED AND REPLACED VBV ACTUATOR ON R/H SIDE OF ENGINE IAW B737-800 AMM 75-32-02. PERFORMED AUCTUATORS TEST ENG #2 PASSED REF AMM 71-00-00. CLEANED AREA & LK CK GOOD REF AMM 71-00-00-800-811-F00 TEST 3A.