As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LLAR EMERGENCY LIGHT POWER SUPPLY M023 BATTERY PACK FOUND POOR CONDITION. REPLACED THE LLAR EMERGENCY LIGHT POWER SUPPLY M023 BATTERY PACK AND PERFORMED NEW BATTERY INSTALLATION TEST IAW AMM 33-51-06-960-803 REV.105. THE TEST RESULT FOUND NORMAL.