As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: MASTER WARNING AFTER LEVEL OFF OCCURRED 2 SEPARATE TIMES 1 MINUTE DURATION COULD NOT CONFIRM THE SOURCE . ECAM LAV SMOKE LAV 2. AS PER AMM TASK 26-17-00 OPERATIONAL TESTED AND PERFORMED MCDU TEST .ALL CHECKS NORMAL, NO MESSAGES OR WARNINGS.