As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 0327 - EWR - THE OVERHEAD EMERGENCY LIGHTS IN FIRST CLASS SECTION OF CABIN WOULD NOT ILLUMINATE WHEN TESTED DURING A PREFLIGHT CHECK. THE BATTERIES FOR THE OVERHEAD EMERGENCY LIGHTS WERE REMOVED AND REPLACED AND OPERATION OF THE LIGHTS WAS RESTORED. (Z)