As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING PS-CHECK FOUND EMERGENCY LIGHT AT DOOR 4L INOP (R SIDE OF DOOR). MAINTENANCE FOUND CONNECTOR D3104P COCKED/LOOSE. INSPECTED WIRING NO FAULTS FOUND. RESECURED CONNECTOR D3104P. EMERGENCY LIGHTS OPS CHECK OK. PER MM 33-51-00.