As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) LH ACCESSORY GEARBOX LOW ON OIL. THE OIL SUPPLY LINE TO THE CABIN SUPERCHARGER WAS BROKEN OFF AT THE FITTING. THE SUPERCHARGER WAS REMOVED, THE QUILL SHAFT WAS FOUND SHEARED AND THE SCROLLS BINDING. THE SUPERCHARGER DRIVE BEARINGS LOCATED ON THE GEARBOX WERE DAMAGED, BALLS MISSING, CAGE BROKEN. GEARBOX AND SUPERCHARGER REPLACED.