As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
M/D 3L AFT EMERGENCY POWER SUPPLY M33405 BATTERY PACK FOUND LOW CAPACITY REF TO HAECO NON-ROUTINE NO.9450768, ORIGINATED BY EMP V903218, 86-3350-1-0002 PERFORMED BY EMP V903218 AND IDT BY EMP V903670 - REPLACED M/D 3 L AFT EMERGENCY POWER SUPPLY M33405 BATTERY PACK AND C/O NEW BAT TERY PACK INSTALLATION TEST & CAPACITY CHECK. THE TEST RESULT FO UND NORMAL AS PER AMM 33-51-06-200-801 & AMM 33-51-06-960-802 REV 102.