What was found
GSO-LGA - FLT 990 - UPON GEAR EXTENSION DURING APPROACH, THE GREEN NOSE LANDING GEAR LIGHT DID NOT ILLUMINATE, ALL NOSE GEAR UNSAFE LIGHTS WERE OUT. THE GEAR WAS RECYCLED AND ALL INDICATIONS WERE NORMAL. MAINTENANCE CHECKED THE NOSE GEAR INDICATING SYSTEM, AND PERFORMED A GEAR RETRACTION AND EXTENSION TEST, ALL WAS NORMAL. (M)