What was found
RETURNED TO DEPARTURE DUE TO THE RIGHT OVERWING EMERGENCY DOOR EXIT INDICATED OPEN ON THE MASTER CAUTION. NO EMERGENCY DECLARED, LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS GROUNDED. DOORS INDICATE GREEN ON GROUND. MAINTENANCE FOUND RIGHT OVERWING ESCAPE HATCH HANDLE APPROX 10 DEGREE FROM FULL CLOSED POSITION. AT 10 DEGREES LATCH IS MOVED AND MICROSWITCH IS OFF, THIS WAS A GOOD INDICATION. LUBED LATCH HANDLE AND PINS TO ALLOW HANDLE TO MOVE TO 0 DEGREE (FULLY CLOSED) POSITION PER AMM 52-20-00 & AMM 52-21-00.