As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 3432 - DURING PREFLIGHT INSPECTION IN DTW, THE CREW NOTED SEVERAL WHITE FLOOR TRACK EMERGENCY ESCAPE PATH LIGHTS WERE INOPERATIVE. MAINTENANCE PERSONNEL REPLACED THE EMERGENCY BATTERY PACKS AT THE LEFT FORWARD AND LEFT AFT POSITIONS. ALL SYSTEMS OPERATED SATISFACTORILY. (M)