What was found
GRR FLT 2904 THE CREW REPORTED THE OVERWING CEILING EXIT LIGHT DID NOT TEST. MAINTENANCE INSPECTED AND REPLACED THE NR 4 EMERGENCY LIGHT INVERTER. OPERATIONAL CHECKS WERE GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
GRR FLT 2904 THE CREW REPORTED THE OVERWING CEILING EXIT LIGHT DID NOT TEST. MAINTENANCE INSPECTED AND REPLACED THE NR 4 EMERGENCY LIGHT INVERTER. OPERATIONAL CHECKS WERE GOOD.