What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUPPLY UNIT 10WL FAILS TEST. REPLACED POWER SUPPLY (AALA202204226964) AND REPLACED BATTERY (AALA202204228802) PER AMM 33-51-38-400. OPERATIONAL CHECK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY POWER SUPPLY UNIT 10WL FAILS TEST. REPLACED POWER SUPPLY (AALA202204226964) AND REPLACED BATTERY (AALA202204228802) PER AMM 33-51-38-400. OPERATIONAL CHECK NORMAL.