As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DRC EMERGENCY PATH LIGHTS AT SEAT 21-30 LEFT AND RT SIDE ARE INOPERATIVE. MAINTENANCE FOUND OUTPUTS SHARING THE SAME FUSE PINS 11 AND 12 AT BATTERY PACK M9009. INS WIRES TO PINS 9 AND 13 PER WD 33-51-31. FOUND SHORTED PLUG AT SEAT 24FG AND REPAIRED. SYSTEM OPERATION IS NORMAL.