As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SIGNS OF OIL LEAKAGE AROUND FAN CASE EXIT, OBSERVED ON ARRIVAL. AFTER EVALUATION FOUND LEAK COMING FROM AGB CONNECTION TO INTERMEDIATE CASE. CONFIRMED AGB PACKING DETERIORATING. REPLACED AGB, LAY SHAFT & TOWER SHAFT IAW EC -AR 7261-01349. RAN NR 1 ENGINE, ALL CHECKS PASSED, NO LEAKS.