As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE #1 DRIVE LIGHT; #1 SOURCE LIGHT; & #1 GEN OFF BUS LIGHT ILLUMINATED; FOLLOWED PROCEDURE IN QRH. DISCONNECTED #1 DRIVE. DIVERTED TO MCI. PERFORMED NORMAL LANDING. ('NO OVERWEIGHT LANDING')<[01] TROUBLESHOT PER FIM 24-11 TASK 801. FOUND IDG FAULT. REMOVED #1 IDG AND FOUND INPUT SHAFT SHEARED. INSTALLED SERVICEABLE IDG PER AMM 24-11-11. OPS CHECK GOOD