As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND EMERGENCY LIGHT BATTERY PACK LOW CAPACITY AT R3 DOOR AFT A REA REFER HAECO NON ROUTINE LOG PAGE:9494606, WIRING CHECK FOUND M33401 BATTERY PACK LOW CAPACITY REPLACED M33401 BATTERY PACK AND NEW BATTERY PACK I NSTALLATION TEST FOUND NORMAL AS PER WDM 33-51-66 REV.90 AMM 33- 51-06-960-802 REV.101.