As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: R3 DOOR EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY INOPERATIVE. REPLACED EPAS BATTERY PACK ASSEMBLY M52115 AT DOOR R3 AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK PER AMM 52-12-19-000-802, AMM 52-12-19-400-801 AND AMM 52-12-19-710-802.