As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPERNUMERARY LIGHT SYSTEM CAME ON AT LIFT OFF. LIGHTS REMAINED ON REGARDLESS OF SWITCH POSITION. LIGHTS CAME BACK ON AT LANDING. ITEM DEFERRED M305518. PLACARD INSTALLED. OPS CHECKED EMERGENCY LIGHTING SYSTEM AND OPS CHECK GOOD. THIS CLEARS M305518. PLACARD REMOVED.