What was found
AIRCRAFT IN BASE MAINTENANCE: BATTERY FAULT FOR EMERGENCY POWER SUPPLY UNIT 10WL DISPLAYED DURING SYSTEM TEST. REPLACED BATTERY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MAINTENANCE: BATTERY FAULT FOR EMERGENCY POWER SUPPLY UNIT 10WL DISPLAYED DURING SYSTEM TEST. REPLACED BATTERY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-38.