What was found
EMERGENCY LIGHTS - OPERATIONAL TEST WITH THE TEST SWITCH PROCEDURE - AFT EMERGENCY EXIT LOCATOR SIGN (M10255) INOP SWAPPED EMERGENCY BATTERY CHARGER M737 WITH M736 FOR TROUBLESHOOTING PURPOSES REF AMM 33-51-07. THIS CORRECTED THE AFT EMERGENCY EXIT LOCATOR SIGN. RE-INSTALLED BATTERY CHARGERS IN THERE ORIGONAL POSITIONS. OP CHECK IS GOOD FOR BATTERY CHARGER M737. WAITING ON PARTS TO CONTINUE. REMOVED AND REPLACED FUSE IN POWER SUPPLY REF AMM 33-51-07. OPS CHECK GOOD. SIGN LIGHTS UP AS INTENDED.