What was found
ON SHORT FINAL, WITH GEAR HANDLE DOWN, CREW DID NOT RECEIVE GREEN NOSE GEAR INDICATION. RAN EMERGENCY CHECKLIST WITH NO RESOLUTION. DIVERTED. ACFT LANDED UNEVENTFUL. TROUBLESHOT SYS TO BAD GEAR INDICATOR BULB. DEFECTIVE BULB REPLACED, LANDING GEAR RETRACTION TEST PERFORMED SATISFACTORILY AND ACFT WAS RETURNED TO SERVICE.