As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 ENGINE OIL TREND DATA SHOWS OIL CONSUMPTION TO GREATER THAN EXPECTED. ETOPS ENGINE POWER RUN REQUIRED. GROUNDED - YES. FOUND EVIDENCE OF OIL LEAKING AT STARTER AND QAD. REMOVED AND REINSTALLED STARTER AND QAD AND REPLACED THEIR SEALS IAW B737-800 AMM 80-11-01 AND AMM 80-11-02. OPS AND LEAK CHECK GOOD.