As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PDC WALKAROUND, FOUND #2 ENGINE LEAKING FUEL. GROUNDED - YES. PERFORMED ENGINE VENTS AND DRAINS INSPECTION PER B737-800 AMM 71-71-00-200-800-F00, FOUND TBV LEAKING 60 DROPS PER MINUTE, RAN ENGINE FOR 5 MIINUTES, NO LEAKS NOTED AFTER ENGINE RUN. REMOVED & REPLACED TRANSIENT BLEED VALVE REF AMM 75-23-01. OPS CK & LEAK CHECK GOOD. A/C OK FOR SERVICE.