What was found
DURING EMERGENCY LIGHTING TEST, RECEIVED POWER SUPPLY FAULT CODE 13WL. REMOVED AND REPLACED EMERGENCY POWER SUPPLY BATTERY AT 13WL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING EMERGENCY LIGHTING TEST, RECEIVED POWER SUPPLY FAULT CODE 13WL. REMOVED AND REPLACED EMERGENCY POWER SUPPLY BATTERY AT 13WL.