As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EMERGENCY EXIT LIGHTS ARE ILLUMINATED IN THE ARMED POSITION AND WILL NOT RESET. MAINTENANCE FOUND EMERGENCY LIGHT SWITCH 4L WOULD NOT TURN OFF LIGHTS FROM ON TO ARMED IAW TSM33-51-00-810-881-A . REMOVED AND REPLACED EMERGENCY LIGHT SWITCH 4L IAW WDM 33-51-01 AND RELAY 8WL IAW WDM 33-51-03.