What was found
DEN - EEL - DURING 8-DAY CHECK THE RT MID CABIN EMERGENCY LIGHT BATTERY FAILED TEST. MAINTENANCE REMOVED AND REPLACED THE RT MID CABIN EMERGENCY LIGHT BATTERY AT EMERGENCY POWER SUPPLY UNIT 12WL, OPERATIONAL CHECK WAS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DEN - EEL - DURING 8-DAY CHECK THE RT MID CABIN EMERGENCY LIGHT BATTERY FAILED TEST. MAINTENANCE REMOVED AND REPLACED THE RT MID CABIN EMERGENCY LIGHT BATTERY AT EMERGENCY POWER SUPPLY UNIT 12WL, OPERATIONAL CHECK WAS GOOD.