As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND THE OVERHEAD BIN-MOUNTED EMERGENCY LIGHT OUT AT ROWS 21F,E,D AND AS WELL AS THE CEILING-MOUNTED EMERGENCY LIGHTS AT ROWS 23 AND 27. R/R BOTH BATTERY PACK & POWER SUPPLY IAW AMM 33-51-06. OPS CK GOOD.PARTS USED: 99-3351-3-0015,QTY :1