As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT CSD OIL PRES LOW AND LT GEN OFF LIGHTS ILLUMINATED - FOLLOWED QRH - DISCONNECTED CSD. ACCORDING TO MCC NOTIFICATION, AN EMERGENCY WAS DECLARED. REMOVED CSD & GEN. FOUND CSD SHAFT TO THE GEAR BOX SHEERED. REPLACED CSD & REINSTALLED GEN IAW AMM 24-10. SYSTEM OPS CKS GOOD.