As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6371 - EWR-IAD - DURING TAXI, AIRCRAFT MADE A SCHEDULED LANDING AT IAD WITH ONE DISCREPANCY WHICH WAS AFT EMERGENCY LIGHTS INTERIOR AND EXTERIOR INOP. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED BATTERY PACK. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)