As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS COMMON TO BATTERY M1670 INOP REFERENCE WDM 33-51-13 FOR SPECIFIC INOP LIGHTS<[01] VERIFIED MEASUREMENTS TABLE.;[02] REMOVED; REPLACED AND PERFORMED GOOD OPS TEST OF M1670 BATTERY PACK AS DOCUMENTED ON ASSOCIATED STEPS.