What was found
INSTALLED POWER FLOW SYSTEMS EXHAUST STC NR SA02871AT AT TACH TIME 4646.93, AT TACH TIME 4768.70 THE NR 4 EXHAUST PORT HAD BROKE FREE OF MUFFLER. (K)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
INSTALLED POWER FLOW SYSTEMS EXHAUST STC NR SA02871AT AT TACH TIME 4646.93, AT TACH TIME 4768.70 THE NR 4 EXHAUST PORT HAD BROKE FREE OF MUFFLER. (K)