As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: SEAT ROW 27 EMERGENCY EXIT ROW SEAT LIGHT NOT ILLUMINATING DURING SYSTEM TEST. MAINTENANCE FOUND WIRE HARNESS FROM DISCONNECT 7261VC TO SEATS 27 AND 28 HAD FAILED. MAINTENANCE REPLACED THE WIRE HARNESS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-00.