As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS POWER SUPPLY M1675 FAIL CAPACITY CHECK- FOUND DURING CAPACITY CHECK FOR REPLACEMENT OF M1674 POWER SUPPLY BATTERY. REPLACED BATTERY PACK IN M1675 EMERGENCY LIGHTS POWER SUPPLY IAW AMM 33-51-06-960-805. CAPACITY CHECK FOR M1675 SUPPLIED LIGHTS GOOD IAW AMM 33-51-06-200-801.PARTS USED: 99-3351-3-0015,QTY :1 PARTS USED: 99-3351-3-0015,QTY :1