What was found
SFO - EMERGENCY FLASH LIGHT AT AFT CABIN INOPERATIVE. REPLACED BATTERY FOR EMERGENCY FLASH LIGHT AT AFT CABIN. SYSTEM GROUND CHECKED NORMAL OPERATION.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SFO - EMERGENCY FLASH LIGHT AT AFT CABIN INOPERATIVE. REPLACED BATTERY FOR EMERGENCY FLASH LIGHT AT AFT CABIN. SYSTEM GROUND CHECKED NORMAL OPERATION.