As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN EXIT SIGN/LIGHT: MAIN EXIT SIGNS LOWER LEFT AND RIGHT AND SEAT 10 EMER LIGHTS INOP ON PREFLIGHT CHECK.///SIGN-OFF///FOUND #1 BATTERY EMERGENCY BATTERY DEAD, REMOVED #1 EMER BATTERY PACK REF. CE680A M/M. 33-50-06 P/N OFF CBS28-1 S/N OFF 007139