What was found
EMERGENCY LIGHTS BENEATH SEATS 3 AND 8 DO NOT COME ON AS WELL AS THE EXIT SIGN LIGHT ON THE DIVAN FORWARD BULKHEAD. RECIEVED NEW EMERGENCY LIGHT POWER SUPPLY. GAINED ACCESS TO THE POWER SUPPLIES WITHIN THE AVIONICS BAY. REMOVED #3 ELPS (A759) (PN: 3400-20, SN: 012628) AND INSTALLED NEW UNIT (PN: 3400-20, SN:014678). POWERED UP AIRCRAFT AND PERFOMRED OPERATIONAL CHECK OFTHE EMERGENCY LIGHT POWER SUPPLIES, OPS CHECK GOOD. CLOSED UP AVIONICS BAY PANEL 141AB AND RETURNED AIRCRAFT TO ORIGINAL CONFIGURATION. ALL WORK DONE IAW GL7SOO AMP 33-53-11 & 33-53-05.