As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON COMPLYING WITH AD2015-02-09, FOUND EXHAUST PIPES LEAKING AT THE BALL JOINTS WHERE THEY CONNECT TO THE MUFFLER. 1 SIDE OF 1 BALL JOINT LIP ON THE MUFFLER HAD DETERIORATED SUBSTANTIALLY, FROM ABOUT .065 TO .023. ALL BALL JOINTS SHOWED SIGNS OF LEAKING AND HEAT CORROSION.