What was found
AFTER RAISING LANDING GEAR, RED NOSE GEAR LIGHT REMAINED ILLUMINATED WITHOUT A CORRESPONDING DOORS LIGHT, OR GREEN GEAR LIGHT. CYCLED GEAR PER QRH PROCEDURES WITH NO POSITIVE RESULTS. LIGHT REMAINED ILLUMINATED ENTIRE FLIGHT. AIRCRAFT INCURRED A MAINTENANCE FLIGHT DIVERSION INTO EWR, DURING A SCHEDULED FLIGHT INTO BOS. FOUND POSITION SWITCH S-93 FAULTY. REMOVED AND REPLACED POSITION SWITCH PER M/M32-61-071-4 AND M/M32-61-071-5. OP CHECKS GOOD.