As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING T/C 78233001 FOUND BATTERY PACKS FOR L1 DOOR L2 DOOR R1 DOOR FAILED. GROUNDED - YES. REMOVED AND REPLACED M1673 POWER SUPPLY BATTERY PACK ASSY. OPS NORMAL. REF AMM 33-51-06 AND WDM 33-51-22. REMOVED AND REPLACED BATTERY PACKS AND POWER SUPPLIES AT M2816 AND M1675 IAW AMM 33-51-06-960-805/806. TEST PASSED.