What was found
PHL - FLT 1024 EN-ROUTE SJU TO PHL. CREW REPORTS: LEFT GEAR GREEN DN LIGHT FAILED TO ILLUM WITH GEAR HANDLE DN. EICAS MESSAGE NOT DISPLAYED, DOOR & GEAR AMBER LIGHTS WERE EXTINGUISHED. AN EMERGENCY WAS REPORTED TO HAVE BEEN DECLARED, PROMPTING CFR RESPONSE. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED THE FOLLOWING ACTION: INSTALLED NEW PRESS TO TEST SWITCHES W/OPERABLE LIGHTS AT NOSE & LT GEAR POSITIONS.