As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION FOUND THE EMERGENCY LIGHT STRIPS POWERED BY THE NR 3 POWER PACK WAS INOPERABLE. SUSPECT NR 5 INVERTER. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE EMERGENCY LIGHT DC/AC NR 5 INVERTER IAW AMM 33-50-11. PART NUMBER 7824-1. REMOVED AND REPLACED THE NR 3 EMERGENCY POWER SUPPLY AND BATTERY IAW AMM 33-50-04. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.