As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, WHEN GEAR SELECTED DOWN, THE RIGHT MAIN AND NOSE GEAR GREEN LIGHT DID NOT ILLUMINATE. APPROACH WAS ABORTED AND EMERGENCY DECLARED. OVERHEAD INDICATORS ALL GREEN. MAINTENANCE ACCOMPLISHED A BITE CHECK OF PSEU WITH NOT CURRENT FAULT OR FAULT HISTORY IAW AMM 32-09-10. REPLACED THE LAMP IN THE LANDING GEAR ANNUNCIATOR IAW AMM 33-11-00. SYSYTEM CHECKED GOOD.