As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ROW 22 LT EMERGENCY LIGHT NOT WORKING ALSO R1 DOOR EMERGENCY EXIT LIGHT NOT WORKING. GROUNDED-YES. R & R BATTERY PACK AT R1 DOOR, IAW B737-800 AMM 33-51-06-960-806. REPLACED BATTERY PACK AT ROW 22 LT, IAW B737-800 AMM 33-51-06-960-806.