What was found
ON FLIGHT 2827 DURING TAKEOFF THE CREW REPORTED, AIR CONDITIONING SMOKE IN THE COCKPIT. THE CAPTAIN ELECTED TO ABORT THE TAKEOFF. THE CREW PERFORMED CHECK LIST PROCDURES AND RETURNED TO THE GATE. NO FURTHER ANOMALIES; NO SMOKE NOTED DURING TAXI. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE NR 1 ENGINE IAW W/C 71-000-00. THE OPERATIONAL CHECKS AND LEAK CHECKS WERE NORMAL. THE AIRCRAFT WAS RETURNED TO SERVICE. PER THE TEAR DOWN REPORT THE NUMBER 4 CARBON SEAL WAS FOUND TO BE FAULTY