As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED LAVATORY SMOKE WARNING ON CLIMB, EMERGENCY DECLARED. RETURNED TO DFW. REMOVED AND REPLACED NUMBER TWO ENGINE IAW AMERICAN EAGLE WORK CARD 72-00-00. OPERATIONAL AND LEAK CHECKS PERFORMED WITH NO DEFECTS, AIRCRAFT RETURNED TO SERVICE.