As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK DUE TO CRACK IN LEFT WINDSHIELD. AIRCRAFT LANDED WITHOUT INCIDENT AT KBNA. REPLACED LH COCKPIT SIDE WINDOW. PRESSURIZATION AND LEAK CHECK OF LH COCKPIT SIDE WINDOW—GOOD. PERFORMED FINAL TORQUE OF HARDWARE IAW LEGACY 450 AMM 56-12-00. TORQUE WRENCH AOG11-014; CALIBRATION DUE 11/16/2022. P/N NP200402-7 S/N 10140. THE AIRCRAFT WAS POST SB550-56-0001 AT TIME OF EVENT.