As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT AND WHILE ON TAXIWAY PASSENGER AT SEAT ROW 28 NOTICED LOOSE WIRING UNDER SEAT ROW 27. AIRCRAFT RETURNED TO RAMP AREA AND MTC DISCOVERED EMERG TRACK LIGHTING WIRE PULLED AWAY FROM SIDEWALL WITH ONE WIRE BROKEN. MADE APPROVED REPAIR TO WIRING AND SECURED SAME BEHIND SIDEWALL. EMERG TRACK LIGHTING OPERATES NORMALLY THROUGHOUT CABIN.