As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING: DURING PRE- FLIGHT WHEN SELECTING EMER ON EMER LIGHTS DO NOT ILLUMINATE, IN ARM POSITION EMER LIGHTS COME ON NORMAL. REMOVED AND REPLACED THE NR 1 AND 4 EMERGENCY BATTERY PACKS IAW MCC REQUEST WITH REPAIRED BATTERY PACKS IAW AMM 33-50-06. OPS CHECK GOOD.