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 & REPLACED RIGHT VSV ACTUATOR ACTUATOR REF B737-800 AMM 75-31-01. PERFORMED ACTUATOR TEST PASSED REF AMM 71-00-00. LEAK TEST PASSED REF AMM 71-00-00-800-811-F00 TEST 3A.