What was found
LHR - EMERGENCY LIGHTS AT AFT COACH CLASS LEFT AND RIGHT AISLE FLOOR INOPERATIVE. REPLACED BATTERY PACK AT R4 DOOR. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LHR - EMERGENCY LIGHTS AT AFT COACH CLASS LEFT AND RIGHT AISLE FLOOR INOPERATIVE. REPLACED BATTERY PACK AT R4 DOOR. SYSTEM GROUND CHECKED NORMAL OPERATION.