As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE-FLIGHT INSP, AIRCREW NOTICED THE EMERGENCY EXIT SIGN NEXT TO AIRSTAIR DOOR NOT ILLUMINATED. MX CREW RESET EXTERNAL POWER TO ACFT, PERFORMED OPS CHECK OF THE EMERGENCY LIGHTING SYS. SYS CHECKED SATISFACTORY. ACFT WAS RELEASED TO FLIGHT STATUS.