What was found
AIRCRAFT WAS IN BASE MAINTENANCE: EMERGENCY BATTERY PACK (M33094) FAILED DEEP CYCLE TEST AT R1 ENTRY DOOR. MAINTENANCE REPLACED POWER SUPPLY AT R1 ENTRY DOOR IAW B777-2 AMM 33-51-06-960-803.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS IN BASE MAINTENANCE: EMERGENCY BATTERY PACK (M33094) FAILED DEEP CYCLE TEST AT R1 ENTRY DOOR. MAINTENANCE REPLACED POWER SUPPLY AT R1 ENTRY DOOR IAW B777-2 AMM 33-51-06-960-803.