As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS CAME ON WHEN SHUTTING DOWN ENGINES AND WITH APU ON. COULD NOT GET THEM OFF. EMERGENCY LIGHT FAULT CAME ON, THEN OFF ON EICAS. EMERGENCY LIGHTS FINALLY SHUT OFF. IAW AMM, OPS CHECKED EMERGENCY LIGHT SYSTEM. EMERGENCY LIGHTS OPS CHECKED GOOD IAW AMM 33-50-00.