As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) SEVERE CORROSION FOUND IN OIL GALLERY BEHIND M/R XMSN UPPER BEARING LINER FOR 369D25149 AND 369D25148 BEARINGS. PROBLEM INITIALLY INDICATED BY LACK OF FLOW FROM OIL ORFICES. CORROSION FOUND BY REWORK FACILITY DURING LINER REMOVAL, AND WAS UNDETECTABLE WITHOUT REMOVAL OF LINER.