As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE REC`D LAV SMOKE ECAM WARNING 5-10 SECS LATER MSG CLEARED F/A REPORTED NO EVIDENCE OF SMOKE IN ANY LAVS. WE REC`D SAME ECAM AT GATE IN ATL SECOND FALSE ECAM WARNING. BRIEFED CREW SUSPECT PSGR VAPING PERFORMED T/S PER A321 TSM 26- 17. NO FAULTS FOUND. A/C OK FOR SVC. (LP 7702886)