As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A EMER LT BAT 1 LO DURING PREFLIGHT WHEN TESTING EMERG LIGHTS. DEFERRED EMERGENCY LIGHTING SYSTEM PER MEL 33-50-4. COMPLETED DMP 33-50-4. PLACED PLACARD **SUPPLEMENTAL SDR** R/R BATTERY PACK P/N 60-4411-5. THIS CLEARS M677532.