What was found
LAVATORY SMOKE AURAL WARNING ON TAKEOFF, SMOKE NOTED IN CABIN. RETURNED TO LGA. REMOVED AND REPLACED DUCT IAW EMB AMM 21-22-06. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LAVATORY SMOKE AURAL WARNING ON TAKEOFF, SMOKE NOTED IN CABIN. RETURNED TO LGA. REMOVED AND REPLACED DUCT IAW EMB AMM 21-22-06. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.