As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PER FLIGHT CREW DEBRIEF (EMP 66912). ON INITIAL GEAR EXTENSION, DID NOT GET GREEN LIGHT FOR NLG ON THE PRIMARY LANGING GEAR INDICATION. CHANGED THE BULBS FOR THE NLG GREEN IND. THEN GOT THE NLG GREEN INDICATION, AND HAD A NORMAL LANDING. PERFORMED FUNCTIONAL TEST IAW MM 31-12-04-2 PAR 5. OPS CHECK NORMAL AT THIS TIME. DUE TO FLIGHT CREW REMOVED AND REPLACED BULBS OF THE PRIMARY NOSE LANDING GEAR IND.