What was found
DTW - EMERGENCY LIGHTS IN AFT AIR STAIR COMPARTMENT INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHTS IN AFT AIR STAIR COMPARTMENT. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DTW - EMERGENCY LIGHTS IN AFT AIR STAIR COMPARTMENT INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHTS IN AFT AIR STAIR COMPARTMENT. SYSTEM GROUND CHECKED NORMAL OPERATION.