As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE CHECK, FOUND AFT SERVICE DOOR UPPER EMERGENCY LIGHT INOPERATIVE. TROUBLESHOT AND FOUND EMERGENCY BATTERY NR 6 HAS NO OUPUT AT PIN H P0546 SUPPLY POWER IS BAD. R & R NR 6 EMERGENCY LIGHT BATTERY REF EMB E190, AMM 33-50-01. OPS CHECKS GOOD IAW AMM 33-50-00