As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE AIRCRAFT'S FIRST 100 HOUR INSPECTION, THERE IS TASK TO RETORQUE THE ENGINE MOUNT-TO-FIREWALL BOLTS AS SPECIFIED IN MAINTENANCE MANUAL 71-00-00, FIGURE 1. DURING TORQUE CHECK, FOUND MULTIPLE NUTS UNDER-TORQUED AND ONE NUT THAT FAILED, SHEARING INTO MULTIPLE PIECES. ENGINE MOUNT-TO-FIREWALL NUT P/N MS21045-6 SHOULD BE TORQUED TO 240-270 IN. LBS. THE LH ENGINE I/B LWR NUT SHEARED BEFORE 270 IN. LBS. PICTURES ARE AVAILABLE UPON REQUEST.