As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
M1670 EMERGENCY EXIT LIGHT BATTERY PACK & M2335 FOUND BAD AFFECTS L1507,L1210,L1506 AND L547,L6 AND L1515. GROUNDED - YES. REMOVED AND REPLACED M1670 AND M2335 EMERGENCY EXIT BATTERY PACK AND RESOLVED ALL AFFECTED LIGHTS OPS CHECK ALL NORMAL, REF AMM 33-51-06-960 & SSM 33-51-13.