What was found
LEFT UPPER DECK EMERGENCY DOOR/SLIDE BATTERY WILL NOT TEST. REMOVED AND REPLACED LEFT UPPER DECK BATTERY PACK CHARGER PER B747-400 AMM 52-23-14 CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT UPPER DECK EMERGENCY DOOR/SLIDE BATTERY WILL NOT TEST. REMOVED AND REPLACED LEFT UPPER DECK BATTERY PACK CHARGER PER B747-400 AMM 52-23-14 CHECKS GOOD.