As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BATTERY PACK M1694, LIGHTS SHUT OFF PRIOR TO 15 MINUTES MINIMUN (REF AAR NR 99976624). REMOVED AND INSTALLED NEW BATTERY PACK M1694 IAW B737 AMM33-51-0 6-960-805, OPERATIONAL TEST GOOD.(SDR NO. 1033248)(WORK ACCOMPLI SHED BY V936334 AND AAR QC A-83 V935067).