As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6507 - CMH-PHL - BEFORE DEPARTING THE GATE THE CREW NOTICED THAT THE FLOOR EMERGENCY PROX LIGHTS WENT INOPERATIVE ON ROWS 1 THROUGH 6. AIRCRAFT WAS SWAPPED FOR FURTHER TROUBLESHOOTING. MAINTENANCE REPLACED THE EMERGENCY BATTERY PACK AND THE POWER SUPPLY. ALL LIGHTS OPS CHECKS GOOD. (M)