As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BATTERY PACK M1675, LIGHTS SHUT OFF PRIOR TO 12 MINUTES MINIMUN (REF. AAR NR 99988910). REMOVED AND REPLACED BATTERY PACK AND POWER SUPPLY M1675 IAW B737 AMM 33-51-06-960-805 AND AMM 33-51-06-960-806 OPS CHECK GOOD SDR NO 1034560 (WORK ACCOMPLISHED BY V934137 AND AAR QC A-8 V9110 27).