As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE NOTED IN THE CABIN AFTER TAKEOFF. SMOKE TOILET CAUTION MESSAGE. SMOKE FILLED BACK OF CABIN. LAVATORY SMOKE ALARM GOING OFF. CREW FOLLOWED QRH. OPERATED BOTH PACKS WITH BOTH APU AND ENGINE BLEEDS FOR EXTENDED PERIOD IAW AMM. NO SMOKE DETECTED IN CABIN OR COCKPIT AT THIS TIME.