What was found
DURING MAINTENANCE INSPECTION THE COCKPIT STEP EMERGENCY EXIT IDENTIFIER SIGN, MAIN DOOR EMERGENCY EXIT MARKER SIGN, AND GALLEY AISLE CEILING PANEL EMERGENCY LOCATOR SIGN WERE FOUND TO BE INOPERATIVE. MAINTENANCE R & R INVERTER, OPS TESTED WITH NO DEFECTS, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.