As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3890, CREW REPORTED EMERGENCY FLOOR TRACK LIGHTING BY SEATS 8-11 AND WING EMERGENCY EXIT LIGHTS AT THE BOTTOM OF BOTH DOORS INOPERATIVE. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED BATTERY PACK NR 3 IAW 145 AMM 33-50-04. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.