As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HAND SIZED PUDDLE OF OIL UNDER ENG 1 AFT OF DRAIN MAST. OIL ON BOTTOM OF ENGINE. OPERATED ENGINE FOUND OIL LEAKING OUT OF LIMITS FROM TOP OF ANGLE GEARBOX IAW TSM 79-00-00-810-838-A, IF UNABLE TO CORRECT SOURCE OF EXTERNAL OIL LEAK, REPLACE ENGINE. REPLACED NR 1 ENG IAW MT 71-017Q.