As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO GATE. EMERGENCY LIGHTS WILL NOT EXTINGUISH. ACCOMPLISHED TROUBLESHOOTING IAW 33-51-00-810-881-A, R & R EMERGENCY EXIT LIGHT SWITCH FIN 33LP AND EMERGENCY EXIT LIGHT RELAY 8WL IAW ESPM 20-45-00, ALL OPS CHECK NORMAL IAW 33-51-00.