As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT CHECK FOUND HEAVY OIL LEAK COMING FROM #2 ENGINE ORIGINATING FROM ANGLE GEARBOX (ALSO FOUND METAL SHAVINGS). REMOVED AND REPLACE #2 ENGINE MAIN AND ANGLE GEARBOX ASSEMBLY IAW AMM 72-61-01. PERFORMED ENGINE RUN AND LEAK CHECK WITH NO FURTHER LEAKS NOTED.