As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLEANERS WERE USING THE EMERGENCY LIGHTS AS A LIGHT SOURCE. TURNED ON THE CABIN LIGHTS AND SHUT OFF THE EMERGENCY LIGHTS. MAINTENANCE CONTACTED. REMOVED AND REPLACED EMERGENCY LIGHTS BATTERY PACKS 2, 3, 4, AND 5 IAW AMM 33-51-17. LET BATTERY PACKS CHARGE FOR 6HRS AND PERFORMED OPS TEST IAW TS 006612 AND AMM 33-51-00. ALL CHECKED GOOD. "