What was found
WHILE ON THE GROUND, MAINTENANCE FOUND EMERGENCY LIGHTS INOP. MAINTENANCE REPLACED THE BATTERY PACK ASSEMBLY. SUSPECT BATTERIES DEAD, REASON UNKNOWN. OPS GOOD AFTER REMOVED AND REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE ON THE GROUND, MAINTENANCE FOUND EMERGENCY LIGHTS INOP. MAINTENANCE REPLACED THE BATTERY PACK ASSEMBLY. SUSPECT BATTERIES DEAD, REASON UNKNOWN. OPS GOOD AFTER REMOVED AND REPLACED.