What was found
BOS - DURING OVERNIGHT MAINTENANCE FOUND EXTERIOR EMERGENCY LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY PACK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BOS - DURING OVERNIGHT MAINTENANCE FOUND EXTERIOR EMERGENCY LIGHTS INOPERATIVE. REMOVED AND REPLACED BATTERY PACK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)