As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
M/D L3 DOOR FWD EMERGENCY POWER SUPPLY M33400 BATTERY PACK FOUND LOW CAPACITY - RAISED FROM WORK CARD 86-3350-1-0002. REPLACED M/D L3 DR FWD EM ERGENCY POWER SUPPLY M33400 BATTERY PACK AS PER AMM 33-51-06-960 -802 REV 103. PERFORMED THE NEW BATTERY PACK INSTALLATION TEST A S 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 RE SULT NORMAL.