As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL LIGHTS ASSOCIATED WITH EMERGENCY BATTERY PACK M1670 INOP ALL LIGHTS ASSOCIATED WITH EMERGENCY BATTERY PACK M1671 INOP NOT M1670<[01] REMOVED; REPLACED AND PERFORMED GOOD OPS CHECK OF THE BATTERY PACK M1671 IAW AMM 33-51-06-960-805;[02] VERIFIED CORRECTIVE ACTION 1