As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE AFT LAV WARNING RIGHT AFTER TAKE OFF FLIGHT 3232 - FILED CLOSED INVESTIGATED SMOKE AFT LAV WARNING AND FOUND THE SMOKE WARNING SOUNDED BECAUSE OF COMPRESSOR WASH SMOKE IN THE CABIN. REFER TO EAML 591478 FOR WORK PERFORMED. PERFORMED OPS CHECK OF THE AFT LAV SMOKE DETECTOR IN REFERENCE TO CRJ 700 AMM 26-16-00. OPS CHECK GOOD AT THIS TIME.