As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND RIGHT AFT SECTION OF AFT CABIN FLOOR EMERGENCY TRACK LIGHTS FLASHING ON AND OFF. REMOVED AND REPLACED ALL FLOOR TRACK LIGHTING ASSOCIATED WITH THE EMERGENCY POWER SUPPLY FOR THE RIGHT AFT SECTION OF THE AFT CABIN. SYSTEM OPS CHECKS NORMAL IN ACCORDANCE WITH MM 33-50.