What was found
AIRCRAFT IN BASE MAINTENANCE: R3 DOOR EPAS BACK UP BATTERY FAILED TEST. MAINTENANCE REMOVED UNSERVICEABLE R3 DOOR EPAS BACK UP BATTERY PACK AND REPLACED WITH SERVICEABLE BATTERY PACK AND OPS CHECK GOOD IAW: B777AMM 52-12-19.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MAINTENANCE: R3 DOOR EPAS BACK UP BATTERY FAILED TEST. MAINTENANCE REMOVED UNSERVICEABLE R3 DOOR EPAS BACK UP BATTERY PACK AND REPLACED WITH SERVICEABLE BATTERY PACK AND OPS CHECK GOOD IAW: B777AMM 52-12-19.