As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) RH EXHAUST COLLECTOR NO5 RISER PIPE RUBBING ON NO3 INLET MANIFOLD CAUSING WEAR DAMAGE TO BOTH ITEMS - COLLECTOR ASSEMBLY WAS NOT A GENUINE CESSNA PART AND APPEARS TO HAVE BEEN INCORRECTLY MANUFACTURED - A GENUINE CESSNA PART FITTED CORRECTLY -PERSONNEL/MAINTENANCE ERROR - UNAPPROVED PART