What was found
DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY LIGHT BATTERY POWER SUPPLY HAD FAILED. REPLACED THE BATTERIES IN THE POWER SUPPLY AND FUNCTIONALLY TESTED THE SYSTEM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY LIGHT BATTERY POWER SUPPLY HAD FAILED. REPLACED THE BATTERIES IN THE POWER SUPPLY AND FUNCTIONALLY TESTED THE SYSTEM.