As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LINE CHECK, MAINTENANCE FOUND THEY HAD NO CONTROL OF THE EMERGENCY PATHWAY LIGHTING IN THE CABIN, THEY WOULD COME ON WHEN ALL AIRCRAFT POWER WAS OFF. MAINTENANCE FOUND THE POWER SUPPLY (B5-104) IN THE CABIN CEILING TO BE MISWIRED. THE POWER SUPPLY WAS REWIRED AND IT RETURNED TO AN OPERATIONAL CONDITION.