As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) LH AND RH ENGINES HAD SPALLED CAMSHAFT EXHAUST LOBES AND ASSOCIATED TAPPETS - BOTH THE ENGINES ARE OF LATE MODIFICATION STATUS WITH LARGE TAPPETS AND LUBRICATING SLOTS IN THE TAPPET GUIDE BORES - LW16702 ADDITIVE IS USED AT EACH OIL CHANGE - METAL CONTAMINATION OF OIL SYSTEM