As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
M/D L2 DOOR AFT EMERGENCY POWER SUPPLY M33099 BATTERY PACK FOUND LOW CAPACITY - ORIGINATED BY EMP V903218 ON HAECO NR 9464034, R AISED FROM WORK CARD 86-3350-1-0002. REPLACED THE M/D L2 DR AF T EMERGENCY POWER SUPPLY M33099 BATTERY PACK AS PER AMM 33-51-06 -960-802 REV 103. PERFORMED THE NEW BATTERY PACK INSTALLATION TE ST AS PER AMM 33-51-06-960-802 REV 104.PERFORMED THE NEW BATTERY PACK CAPACITY CHECK AS PER AMM 33-51-06-200-801 REV 104. TEST RESULT NORMAL.