What was found
DURING SERVICE CHECK, FOUND AFT CABIN OVERHEAD EMERGENCY LIGHTS ILLUMINATE WITH A/C POWER OFF. REPLACED BATTERY POWER SUPPLY AND OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING SERVICE CHECK, FOUND AFT CABIN OVERHEAD EMERGENCY LIGHTS ILLUMINATE WITH A/C POWER OFF. REPLACED BATTERY POWER SUPPLY AND OPS CHECK GOOD.