As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER STARTING ENGINE NR 2 AND LINING UP FOR TAKEOFF "REMOTE C/B TRIP" MESSAGE APPEARED. MCDU INDICATED "EMER AFT BAT HTR" C/B WAS OUT. MAINTENANCE RESET C/B NR 39 OF RICC. PERFORMED EMERGENCY LIGHTING TEST IAW EMB 170 MM 33-50-00-5. OPS CHECK GOOD. NO WRITE UPS SINCE.