What was found
AIRCRAFT IN BASE MAINTENANCE: MAIN CABIN EMERGENCY BATTERY (M33099) INOPERATIVE. REMOVED AND REPLACED MAIN CABIN EMERGENCY BATTERY PACK (M33099) 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.
AIRCRAFT IN BASE MAINTENANCE: MAIN CABIN EMERGENCY BATTERY (M33099) INOPERATIVE. REMOVED AND REPLACED MAIN CABIN EMERGENCY BATTERY PACK (M33099) AND PERFORMED OPERATIONAL TEST IAW B777-2 AMM 33-51-06-960- 802.