As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE ENGINE HAS BEEN DOWN ON POWER FOR QUITE SOMETIME. UPON OVERHAUL TEARDOWN, IT WAS DISCOVERED THAT THE NR 1 AND NR 2 EXHAUST AND INTAKE TAPPET BODIES HAD BROKE. THE PIECES WERE TOO BIG TO BE DISCOVERED IN THE OIL SCREEN. (TC NR 20070911015)