As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT/OPERATOR CONVEYED A STARTING ABNORMALITY. TROUBLESHOOTING FOUND THAT TWO TEETH WERE MISSING FROM CRANKSHAFT GEAR. ENGINE REMOVED AND SENT FOR FURTHER EVALUATION AT ATC AMO NR 59-96. SEE SDR NR 20070912001 FROM AMO 59-96 FOR FURTHRER FOLLOW UP. (TC NR 20070912003)