What was found
DURING INSPECTION THE EMERGENCY LIGHTS SYSTEM FAILED TEST. MAINTENANCE REMOVED AND REPLACED THE AFT LT EMERGENCY POWER SUPPLY UNIT (13WL), FUNCTIONAL TEST WAS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING INSPECTION THE EMERGENCY LIGHTS SYSTEM FAILED TEST. MAINTENANCE REMOVED AND REPLACED THE AFT LT EMERGENCY POWER SUPPLY UNIT (13WL), FUNCTIONAL TEST WAS GOOD.