As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH ALL DOORS CLOSED EMERGENCY CEILING LIGHTS AT A/C LEFT ROW 15 ILLUMINATED AND FLUCTUATED ON AND OFF - EMERGENCY WINDOW LIGHTS AT ROW 16A AND 17A DID THE SAME. GROUNDED - YES. RESET EMERGENCY LIGHTS BY TURNING ON AND OFF BOTH FWD FLT DECK SWITCH AND AFT GALLEY NO DEFECTS NOTED NO RECENT HISTORY OK FOR SERVICE - REF FIM TASK 33-50-00 (INTERMITTEN FAULT).