As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH TO PVC FROM BOS, PILOT REPORTED RIGHT MAIN GEAR DOWNLOCK LIGHT DID NOT ILLUMINATE, PERFORMED EMERGENCY GEAR EXTENSION, STILL DID NOT ILLUMINATE.PRESS TO TEST OF LIGHT CHECKED OK. PILOT ELECTED TO DIVERT. DECLARED AN EMERGENCY, LANDED WITHOUT INCIDENT. MAINTENANCE FOUND AND REPAIRED BROKEN GROUND WIRE AT RIGHT MAIN GEAR DOWNLOCK SWITCH. PERFORMED OPERATIONAL CHECK OF LANDING GEAR. SYSTEM CHECKS OK. AIRCRAFT RELEASED BACK TO SERVICE.