As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LAV "E" SMOKE DETECTOR TRIGGERED IN FLIGHT. NO SMOKE NOTED BUT FORWARD CIDS WOULD NOT RESET. PER AIRBUS A319/A320 TSM TASK 26-17-15-000-001, MAINTENANCE REMOVED AND REPLACED LAV "E" SMOKE DETECTOR. REFERENCE AMM CHAPTER/TASK 26-17-15-000-001 AND 26-17-15-400-001. OPS TEST C/W PER AMM CHAPTER/TASK 26-17-00-710-001.