As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS SMOKE LAVATORY SMOKE ECAM WITH MASTER WARNING AND CRC FOR 3 SECONDS. LAV 11 AND LAC 33 SHOWED RED LIGHT FLASH OVER DOOR, OCCUPIED AT THE TIME. NO SMOKE SMELLED OR SEEN .TRASH CAN WAS INSPECTED. NOTHING FOUND. MAINTENANCE ACCOMPLISHED A330 TSM TASK 26-17-00-810-812-A REV 67, NO FAULTS FOUND. CONFIRMED OK FOR SERVICE.