As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS INOPERATIVE AT AFT DROP CELILING AND AFT ACCESSORY COMPARTMENT. TROUBLESHOT INOPERATIVE EMERG LIGHTS IN AFT DROP CEILING AND AFT ACCESSORY COMPARTMENT IAW MM 33-51-12 AND 33-51-13. DISCOVERED DEFECTIVE BATTERY PACKS AT BOTH LOCATIONS. R & R DEFECTIVE BATTERY PACKS IAW MM 33-53-00 AND 33-53-01, TESTED EMERGENCY LIGHT IAW MM 33-53-00, NOT DEFECTS NOTED, LIGHTS TESTED NORMAL.