What was found
DFW - DURING OVERNIGHT CHECK, FORWARD HALF OF COACH CABIN EMERGENCY EXIT FLOOR PATH LIGHTS FLASH ON AND OFF. REVERSED POLARITY, SYSTEM GROUND CHECKED, NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DFW - DURING OVERNIGHT CHECK, FORWARD HALF OF COACH CABIN EMERGENCY EXIT FLOOR PATH LIGHTS FLASH ON AND OFF. REVERSED POLARITY, SYSTEM GROUND CHECKED, NORMAL OPERATION.