As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) TOILET SMOKE LIGHT ON AFTER TAKEOFF. MESSAGE ON ENGINE INDICATING AND CREW ALERTING SYSTEM AND ALARM IN LAVATORY. LIGHT WENT OUT AFTER 3 MINUTES. REPLACED BOTH COALESCER BAGS, RAN PACKS WITH ENGINE BLEED AIR, NO SMOKE OR UNUSUAL ODORS IN CABIN, FAULT DID NOT RE-APPEAR. CHANGED SMOKE DETECTOR.