As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HANGER ASSY HAS HIGH FREQUENCY VIBRATION. OUTER COUPLING AND BRG HANGER HAD PRIMER PAINTED ON. NO DEFECTS NOTED FOR HIGH FREQUENCY VIBRATION. DISASSEMBLED, STRIPPED PRIMER, CLEANED & VISUALLY INSPECTED ALL PARTS. HAD CAD PLATING REPAIRED. REASSEMBLED IAW 412-CR&O INSTALLING NEW SEAL.PURGE LUBED BRG WITH MOBIL 28,REPACKED COUPLING WITH GREASE 9-20-01.