As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED ENGINE INTO DISASSY SHOP ON 4/30/09. SMOH: 246.7- POSSIBLY NR 5 CYLINDER NOT TORQUED PROPERLY (MAINTENANCE AFTER O/H). CRANKSHAFT BROKEN AT NR 3 MAIN JOURNAL. M010 CRANK. DAMAGE AT CRANKCASE NR 3 AND NR 4 MAIN BEARING TOWER. FRETTING AT NR 3 TOWER ALSO. METAL IMPREGNATION FOUND IN ALL BEARING/ GEARS/ CAMSHAFT. (K)