As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A**SUPPLEMENTAL SDR** EMERG LIGHT BAT 3 LO LEVEL ONE ALERT CAME ON DURING EMERGENCY LIGHT TEST DURING PRE FLIGHT. DEFERRED PER MEL 33-50-2 AND DMP 33-50-2REMOVED AND INSTALLED NEW MSC UNIT IAW AMM 31-42-01. THIS CLEARS M758798