As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT FOUND THAT THE EMERGENCY LIGHT AT SEAT 3B FAILED TO COME ON. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPLACED EMERGENCY LIGHT INVERTER IAW AMM 33-50-11. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.