What was found
EMERGENCY BATTERY PACK M33407 FAILED OPERATIONAL TEST. REPLACED BATTERY PACK M33407 AT ENTRY DOOR L4 AND PERFORMED OPERATIONAL TEST IAW B777-2 AMM 33-51-06-960-802.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EMERGENCY BATTERY PACK M33407 FAILED OPERATIONAL TEST. REPLACED BATTERY PACK M33407 AT ENTRY DOOR L4 AND PERFORMED OPERATIONAL TEST IAW B777-2 AMM 33-51-06-960-802.