As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
****SUPPLEMENTAL INFORMATION****DURING APPROACH ON GEAR EXTENSION, NOSE GEAR ANNUNCIATOR DID NOT ILLUMINATED. QRH PROCEDURE COMPLIED WITH AND AN EMERGENCY WAS DECLARED. LANDING WAS UNEVENTFUL. AIRCRAFT WAS FERRIED TO THE CESSNA SERVICE CENTER FOR MAINTENANCE. MAINTENANCE REPLACED THE NOSE LANDING GEAR DOWN LOCK SWITCH. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.