As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REPAIR OF MAJOR OIL LEAK ON LT ENGINE, FOUND NR1 CYLINDER HAD 3 BROKEN STUDS AND ALL BUT 2 OF THE REMAINING HOLD DOWN NUTS HAD BACKED OFF. CYLINDER ASSEMBLY WOULD HAVE SOON LEFT THE CRANKCASE. 3 STUDS WERE REPLACED AND ALL CLYINDER HOLD DOWNS RE-TORQUED ON BOTH ENGINES ALL FOUND BELOW SPECTS.AC HAD RECENT INSPECTION. NO LOGS AVAILABLE FOR VERIFICATION.