As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNIT RECEIVED AND INSTALLED. WHEN LIGHT IS RETRACTED, UNIT CONTINUES TO RUN WITH A GRINDING NOISE AND MOTOR WILL NOT SHUT OFF. UNIT WAS NOT ADJUSTED ON INSTALLATION. UNIT WAS PURCHASED THRU CESSNA AS AN OVERHAULED PART BY AN OUTSIDE VENDOR. THE UNIT HAS A HISTORY OF EARLY FAILURE AFTER OVERHAUL. THIS COMPANY HAS HAD FIVE WARRANTY ACTIONS CLAIMED ON THIS PART NUMBER.