What was found
CREW FOUND ALL EMERGENCY LIGHTS WOULD NOT TEST DURING PREFLIGHT. MAINTENANCE REPLACED ALL 5 EMERGENCY BATTERY PACKS AT POSITIONS 20LN, 21LN 22LN, 23LN AND 24LN.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW FOUND ALL EMERGENCY LIGHTS WOULD NOT TEST DURING PREFLIGHT. MAINTENANCE REPLACED ALL 5 EMERGENCY BATTERY PACKS AT POSITIONS 20LN, 21LN 22LN, 23LN AND 24LN.