As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT BATTERY PACK / POWER SUPPLY RELAY CHATTERING WITH AFT GALLEY EMERGENCY LIGHTS RAPIDLY FLASHING ON/OFF WHEN THEY SHOULD BE ON STEADY. REMOVED AND REPLACED BATTERY PACK AND POWER SUPPLY FOR AFT GALLEY EMERGENCY LIGHTS PER AMM 33-51-38 PB401. OPS CHECKED GOOD.