As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS CIDS PANEL FLAGING, EMERGENCY EXIT SIGN OVER L1 DOOR INOPERATIVE AND 11WL BATTERY FAILED. THE AIRCRAFT WAS GROUNDED. REPLACED L1 EXIT SIGN OVER L1 DOOR IAW AMM 33-51-38 AND REPLACED 11WL BATTERY IAW 33-51-04. OPERATIONS CHECK GOOD.