What was found
ORD - FLT 4211 - FIRST TWO CABIN EMERGENCY FLOOR PROXIMITY LIGHTS DO NOT ILLUMINATE. REMOVED AND REPLACED ONE EMERGENCY BATTERY PACK. AIRCRAFT RETURNED TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - FLT 4211 - FIRST TWO CABIN EMERGENCY FLOOR PROXIMITY LIGHTS DO NOT ILLUMINATE. REMOVED AND REPLACED ONE EMERGENCY BATTERY PACK. AIRCRAFT RETURNED TO SERVICE. (X)