What was found
FLIGHT 6236 GSO-MCO - ON INITIAL CLIMB AT APPROXIMATELY 800 FEET, A LAV SMOKE WARNING APPEARED ON EICAS. THE TOWER WAS NOTIFIED AND THE FLIGHT ATTENDANT CHECKED THE CABIN FOR SIGNS OF FIRE OR SMOKE. NO EVIDENCE WAS FOUND. ON SHORT FINAL AN E1 LOW OIL PRESS WARNING APPEARED ON EICAS. THE AIRCRAFT LANDED UNEVENTFULLY BUT OVER MAX LANDING WEIGHT. THE FIRE DEPARTMENT PERFORMED A THERMAL SCAN OF THE AIRCRAFT AND NO HEAT SOURCE WAS FOUND. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE. OPS CHECK GOOD. NO SIGNS OF SMOKE PRESENT.