As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT # 1373, EWR-LAX. SMOKE LAVATORY SMOKE ECAM IN FLIGHT WITH ASSOCIATED ALARMS ON FAV CIDS PANEL FOR LAV A.NO EVIDENCE OF FIRE OR CUSTOMER SMOKING. (ALARMS LASTED 5-7 SECONDS) ; PERFORMED OPS TEST OF LAV SMOKE DETECTION SYS PER AMM 26-17-00, TEST OK. BITE TEST SDF PER AMM 26-10-00, TEST OK. AS A PRECAUTIONARY REPLACED ALL 4 AIR EXTRACTION GRILL FILTERS PER AMM 26-17-15. OK FOR SERVICE.