As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - DURING MAINTENANCE VISIT INSPECTION THE EMERGENCY LIGHTS ASSOCIATED POWER SUPPLY 73WL WERE FOUND INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY BATTERY IN THE POWER SUPPLY AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. AIRCRAFT TT: 2,347.8 HOURS. CYCLES: 2,157. (X)