What was found
DURING AN EMERGENCY LIGHT POWER SUPPLY SYSTEM TEST, BATTERY 13WL FAILED. SEATED THE CONNECTOR FOR THE POWER SUPPLY BATTERY, AND THE TEST PASSED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING AN EMERGENCY LIGHT POWER SUPPLY SYSTEM TEST, BATTERY 13WL FAILED. SEATED THE CONNECTOR FOR THE POWER SUPPLY BATTERY, AND THE TEST PASSED.