As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE RUBBING NOISE COMING FROM POWER SECTION AFTER SHUTDOWN AND THEN DISAPPEARS UPON COMPLETE COOL DOWN OF ENGINE. INVESTIGATION REVEALED THAT ANTI-ROTATION LUGS WERE WORN APPROXIMATELY .060. UNIT WAS NOT MODIFIED BY S/B 14206.