What was found
AIRCRAFT IN BASE MAINTENANCE: FAULT EMERGENCY POWER SUPPLY UNIT BATTERY 10WL IN PASSENGER CABIN 2EA. REPLACED SERVICEABLE EMERGENCY POWER SUPPLY UNIT BATTERY 10WL PER AMM 33-51-38-400-002-A.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MAINTENANCE: FAULT EMERGENCY POWER SUPPLY UNIT BATTERY 10WL IN PASSENGER CABIN 2EA. REPLACED SERVICEABLE EMERGENCY POWER SUPPLY UNIT BATTERY 10WL PER AMM 33-51-38-400-002-A.