As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON WALK AROUND, FOUND #2 ENG AFT SUMP AREA LEAKING OIL. GROUNDED - YES. FOUND TURBINE REAR FRAME OIL INLET COVER LEAKING, REPLACED OIL INLET COVER DUE TO WEAR SURFACES ON INSIDE OUT OF LIMITS. IAW B737-900 AMM 72-56-00-200-801-F00 PARAGRAPH E. (7). REPLACED OIL SUPPLY TUBE NIPPLE REF. AMM 72-56-00.