As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(SUPPORT TASK) FOR SERVICE DIFFICULTY REPORT (SDR) EMERGENCY LIGHT BATTERY (M1675) INOP FOR SDR ONLY, REFER TO CARD 4135/37160 ATTACHED. REMOVED AND REPLACED EMERGENCY BATTERY PACK (1675) IAW AMM 33-51-06-960-805 SYSTEM CHECKS GOOD. REMOVE: P/N: AD-D717-01-100. DATA WAS TRANSCRIBED FROM PAPER DOC AERSALE WO 4135 NR 37329.