What was found
ALB-FLT 3589 EMERGENCY LIGHTS ILLUMINATED IN FLIGHT IN ARMED POSITION. MAINTENANCE CHECKED ALL WIRING FROM CIRCUIT BREAKER TO OVERHEAD CEILING ROW 1. INSPECTED WIRES AT SHUNT CANNON PLUG IN NOSE AREA AND NR 1 AND NR 2 TRANSFORMER RECTIFIER UNITS. REPLACED MATRIX BLOCKS 4 AND 5 ON 9811-TB14. EMERGENCY LIGHT CONTROL BOX REPLACED. EMERGENCY LIGHT BATTERIES IN POSITIONS 400, 500, AND 600 REPLACED. FOUND TERMINATED WIRE 7A22 SHORTING TO GROUND AT COCKPIT EMERGENCY LIGHT BOX. WIRE REPAIRED. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.