What was found
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK EMERGENCY LIGHT TEST BATTERY/EMERGENCY POWER SUPPLY UNIT (12WL) RIGHT FAULT CAME UP. REPLACED 12WL BATTERY PER AMM 33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK EMERGENCY LIGHT TEST BATTERY/EMERGENCY POWER SUPPLY UNIT (12WL) RIGHT FAULT CAME UP. REPLACED 12WL BATTERY PER AMM 33-51-38.